diff --git a/tests/test_backtrace.rs b/tests/test_backtrace.rs
index d197447..43f68b8 100644
--- a/tests/test_backtrace.rs
+++ b/tests/test_backtrace.rs
@@ -149,6 +149,25 @@ pub mod structs {
         };
         assert!(any::request_ref::<Backtrace>(&error).is_some());
     }
+
+    // https://github.com/dtolnay/thiserror/issues/185 -- std::error::Error and
+    // std::any::Provide both have a method called 'provide', so directly
+    // calling it from generated code could be ambiguous.
+    #[test]
+    fn test_provide_name_collision() {
+        use std::any::Provider;
+
+        #[derive(Error, Debug)]
+        #[error("...")]
+        struct MyError {
+            #[source]
+            #[backtrace]
+            x: std::io::Error,
+        }
+
+        let _: dyn Error;
+        let _: dyn Provider;
+    }
 }
 
 #[cfg(thiserror_nightly_testing)]
diff --git a/tests/ui/multiple-provide.rs b/tests/ui/multiple-provide.rs
deleted file mode 100644
index dc2c52b..0000000
--- a/tests/ui/multiple-provide.rs
+++ /dev/null
@@ -1,19 +0,0 @@
-#![feature(error_generic_member_access, provide_any)]
-
-use thiserror::Error;
-use std::any::Provider;
-use std::error::Error;
-
-// FIXME: this should work. https://github.com/dtolnay/thiserror/issues/185
-#[derive(Error, Debug)]
-#[error("...")]
-struct MyError {
-    #[source]
-    #[backtrace]
-    x: std::io::Error,
-}
-
-fn main() {
-    let _: dyn Error;
-    let _: dyn Provider;
-}
diff --git a/tests/ui/multiple-provide.stderr b/tests/ui/multiple-provide.stderr
deleted file mode 100644
index 14dcffa..0000000
--- a/tests/ui/multiple-provide.stderr
+++ /dev/null
@@ -1,16 +0,0 @@
-error[E0034]: multiple applicable items in scope
-  --> tests/ui/multiple-provide.rs:13:5
-   |
-13 |     x: std::io::Error,
-   |     ^ multiple `provide` found
-   |
-   = note: candidate #1 is defined in an impl of the trait `Provider` for the type `E`
-   = note: candidate #2 is defined in an impl of the trait `std::error::Error` for the type `std::io::Error`
-help: disambiguate the associated function for candidate #1
-   |
-13 |     Provider::provide(&x, Error): std::io::Error,
-   |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-help: disambiguate the associated function for candidate #2
-   |
-13 |     std::error::Error::provide(&x, Error): std::io::Error,
-   |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~