diff --git a/myst_parser/mdit_to_docutils/base.py b/myst_parser/mdit_to_docutils/base.py
index 099b5ad1..252cc353 100644
--- a/myst_parser/mdit_to_docutils/base.py
+++ b/myst_parser/mdit_to_docutils/base.py
@@ -912,7 +912,7 @@ def render_table(self, token: SyntaxTreeNode) -> None:
 
         # column settings element
         maxcols = len(header_row.children)
-        colwidths = [round(100 / maxcols, 2)] * maxcols
+        colwidths = [100 // maxcols] * maxcols
         tgroup = nodes.tgroup(cols=len(colwidths))
         table += tgroup
         for colwidth in colwidths:
diff --git a/tests/test_renderers/fixtures/sphinx_directives.md b/tests/test_renderers/fixtures/sphinx_directives.md
index 16a5fa74..2084558e 100644
--- a/tests/test_renderers/fixtures/sphinx_directives.md
+++ b/tests/test_renderers/fixtures/sphinx_directives.md
@@ -241,8 +241,8 @@ table (`sphinx.directives.patches.RSTTable`):
             <emphasis>
                 title
         <tgroup cols="2">
-            <colspec colwidth="50.0">
-            <colspec colwidth="50.0">
+            <colspec colwidth="50">
+            <colspec colwidth="50">
             <thead>
                 <row>
                     <entry>
diff --git a/tests/test_renderers/fixtures/tables.md b/tests/test_renderers/fixtures/tables.md
index f24a86cc..b478b926 100644
--- a/tests/test_renderers/fixtures/tables.md
+++ b/tests/test_renderers/fixtures/tables.md
@@ -7,8 +7,8 @@ a|b
 <document source="<src>/index.md">
     <table classes="colwidths-auto">
         <tgroup cols="2">
-            <colspec colwidth="50.0">
-            <colspec colwidth="50.0">
+            <colspec colwidth="50">
+            <colspec colwidth="50">
             <thead>
                 <row>
                     <entry>
@@ -35,8 +35,8 @@ Header only:
 <document source="<src>/index.md">
     <table classes="colwidths-auto">
         <tgroup cols="2">
-            <colspec colwidth="50.0">
-            <colspec colwidth="50.0">
+            <colspec colwidth="50">
+            <colspec colwidth="50">
             <thead>
                 <row>
                     <entry>
@@ -56,9 +56,9 @@ a | b | c
 <document source="<src>/index.md">
     <table classes="colwidths-auto">
         <tgroup cols="3">
-            <colspec colwidth="33.33">
-            <colspec colwidth="33.33">
-            <colspec colwidth="33.33">
+            <colspec colwidth="33">
+            <colspec colwidth="33">
+            <colspec colwidth="33">
             <thead>
                 <row>
                     <entry classes="text-left">
@@ -92,8 +92,8 @@ Nested syntax:
 <document source="<src>/index.md">
     <table classes="colwidths-auto">
         <tgroup cols="2">
-            <colspec colwidth="50.0">
-            <colspec colwidth="50.0">
+            <colspec colwidth="50">
+            <colspec colwidth="50">
             <thead>
                 <row>
                     <entry>
@@ -125,8 +125,8 @@ a|b
 <document source="<src>/index.md">
     <table classes="colwidths-auto">
         <tgroup cols="2">
-            <colspec colwidth="50.0">
-            <colspec colwidth="50.0">
+            <colspec colwidth="50">
+            <colspec colwidth="50">
             <thead>
                 <row>
                     <entry>
diff --git a/tests/test_sphinx/sourcedirs/texi_table/conf.py b/tests/test_sphinx/sourcedirs/texi_table/conf.py
new file mode 100644
index 00000000..e1c5009b
--- /dev/null
+++ b/tests/test_sphinx/sourcedirs/texi_table/conf.py
@@ -0,0 +1,2 @@
+extensions = ["myst_parser"]
+exclude_patterns = ["_build"]
diff --git a/tests/test_sphinx/sourcedirs/texi_table/index.md b/tests/test_sphinx/sourcedirs/texi_table/index.md
new file mode 100644
index 00000000..9face4b5
--- /dev/null
+++ b/tests/test_sphinx/sourcedirs/texi_table/index.md
@@ -0,0 +1,3 @@
+| foo | bar |
+| --- | --- |
+| baz | bim |
diff --git a/tests/test_sphinx/test_sphinx_builds.py b/tests/test_sphinx/test_sphinx_builds.py
index e8615a64..ca34c733 100644
--- a/tests/test_sphinx/test_sphinx_builds.py
+++ b/tests/test_sphinx/test_sphinx_builds.py
@@ -547,3 +547,20 @@ def test_fieldlist_extension(
             regress_html=True,
             regress_ext=f".sphinx{sphinx.version_info[0]}.html",
         )
+
+
+@pytest.mark.sphinx(
+    buildername="texinfo",
+    srcdir=os.path.join(SOURCE_DIR, "texi_table"),
+    freshenv=True,
+)
+def test_texinfo_table(
+    app,
+    status,
+    warning,
+):
+    """Test that tables can be built with the Texinfo builder."""
+    app.build()
+    assert "build succeeded" in status.getvalue()  # Build succeeded
+    warnings = warning.getvalue().strip()
+    assert warnings == ""
diff --git a/tests/test_sphinx/test_sphinx_builds/test_basic.resolved.sphinx4.xml b/tests/test_sphinx/test_sphinx_builds/test_basic.resolved.sphinx4.xml
index ed086997..8a12765e 100644
--- a/tests/test_sphinx/test_sphinx_builds/test_basic.resolved.sphinx4.xml
+++ b/tests/test_sphinx/test_sphinx_builds/test_basic.resolved.sphinx4.xml
@@ -75,8 +75,8 @@
                 a=1{`}
         <table classes="colwidths-auto">
             <tgroup cols="2">
-                <colspec colwidth="50.0">
-                <colspec colwidth="50.0">
+                <colspec colwidth="50">
+                <colspec colwidth="50">
                 <thead>
                     <row>
                         <entry>
diff --git a/tests/test_sphinx/test_sphinx_builds/test_basic.sphinx4.xml b/tests/test_sphinx/test_sphinx_builds/test_basic.sphinx4.xml
index c793d318..34b0e3c3 100644
--- a/tests/test_sphinx/test_sphinx_builds/test_basic.sphinx4.xml
+++ b/tests/test_sphinx/test_sphinx_builds/test_basic.sphinx4.xml
@@ -76,8 +76,8 @@
                 a=1{`}
         <table classes="colwidths-auto">
             <tgroup cols="2">
-                <colspec colwidth="50.0">
-                <colspec colwidth="50.0">
+                <colspec colwidth="50">
+                <colspec colwidth="50">
                 <thead>
                     <row>
                         <entry>
diff --git a/tests/test_sphinx/test_sphinx_builds/test_gettext_html.resolved.sphinx4.xml b/tests/test_sphinx/test_sphinx_builds/test_gettext_html.resolved.sphinx4.xml
index 1b1c195b..231ca337 100644
--- a/tests/test_sphinx/test_sphinx_builds/test_gettext_html.resolved.sphinx4.xml
+++ b/tests/test_sphinx/test_sphinx_builds/test_gettext_html.resolved.sphinx4.xml
@@ -43,7 +43,7 @@
                             gras
         <table classes="colwidths-auto">
             <tgroup cols="1">
-                <colspec colwidth="100.0">
+                <colspec colwidth="100">
                 <thead>
                     <row>
                         <entry>
diff --git a/tests/test_sphinx/test_sphinx_builds/test_gettext_html.sphinx4.xml b/tests/test_sphinx/test_sphinx_builds/test_gettext_html.sphinx4.xml
index 0d8dbc79..dfc5f414 100644
--- a/tests/test_sphinx/test_sphinx_builds/test_gettext_html.sphinx4.xml
+++ b/tests/test_sphinx/test_sphinx_builds/test_gettext_html.sphinx4.xml
@@ -43,7 +43,7 @@
                             gras
         <table classes="colwidths-auto">
             <tgroup cols="1">
-                <colspec colwidth="100.0">
+                <colspec colwidth="100">
                 <thead>
                     <row>
                         <entry>