diff --git a/configure.ac b/configure.ac
index 140ff76029e..55f01b9f554 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2232,7 +2232,7 @@ AC_CACHE_CHECK([for flag to work around GCC union bugs],
 	   [/* Work around GCC bugs 117423 and 119085 re holes in unions:
 	       https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117423
 	       https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119085
-	       These are fixed in GCC 14.4 and 15.2.
+	       These are fixed in GCC 13.5, 14.4 and 15.2.
 
 	       Working around them also works around GCC bug 58416
 	       with double in unions on x86, where the generated insns