diff --git a/dev-debug/systemtap/systemtap-5.1-r1.ebuild b/dev-debug/systemtap/systemtap-5.1-r1.ebuild
index 06b3b67bd81b8..f26acd209aca5 100644
--- a/dev-debug/systemtap/systemtap-5.1-r1.ebuild
+++ b/dev-debug/systemtap/systemtap-5.1-r1.ebuild
@@ -129,7 +129,8 @@ src_configure() {
 		$(use_with selinux)
 	)
 
-	# Use bash because of bashisms with brace expansion in Makefile.am (bug #913947)
+	# Use bash because of bashisms with brace expansion in Makefile.am
+	# https://sourceware.org/PR32105
 	CONFIG_SHELL="${BROOT}"/bin/bash PYTHON3="${PYTHON}" econf "${myeconfargs[@]}"
 }