diff --git a/tools/perf/check-headers.sh b/tools/perf/check-headers.sh
index 9b6295809a3b074d1db1515d2f6243211ec83c27..d87bc6af0ac203ec30f3b9e644349888291fc901 100755
--- a/tools/perf/check-headers.sh
+++ b/tools/perf/check-headers.sh
@@ -47,7 +47,7 @@ check () {
   cmd="diff $opts ../$file ../../$file > /dev/null"
 
   test -f ../../$file &&
-  eval $cmd || echo "Warning: $file differs from kernel" >&2
+  eval $cmd || echo "Warning: Kernel ABI header at 'tools/$file' differs from latest version at '$file'" >&2
 }