diff --git a/build-tools-internal/src/main/groovy/elasticsearch.build-scan.gradle b/build-tools-internal/src/main/groovy/elasticsearch.build-scan.gradle
index 9f13e2a02de2a..ac0f331d6007b 100644
--- a/build-tools-internal/src/main/groovy/elasticsearch.build-scan.gradle
+++ b/build-tools-internal/src/main/groovy/elasticsearch.build-scan.gradle
@@ -169,5 +169,5 @@ buildScan {
 }
 
 static def safeName(String string) {
-  return string.replaceAll(/[^a-zA-Z0-9_\-]+/, ' ').trim().replaceAll(' ', '_').toLowerCase()
+  return string.replaceAll(/[^a-zA-Z0-9_\-\.]+/, ' ').trim().replaceAll(' ', '_').toLowerCase()
 }