diff --git a/m4/check-package.m4 b/m4/check-package.m4
index 3e888631545ea4180176218c698436a1fa4d265a..84c88981669cb5e9118a4362d295dde08648ba5d 100644
--- a/m4/check-package.m4
+++ b/m4/check-package.m4
@@ -55,7 +55,7 @@ dnl HAVE_[name]_H for all names listed in $6
 dnl
 dnl Automake conditional
 dnl
-dnl AM_CONDITIONAL([HAVE_]UPNAME, [test -n "$[]UPNAME[_LIB]"])
+dnl AM_CONDITIONAL([HAVE_]UPNAME, [test -n "$[]UPNAME[_LIBS]"])
 
 dnl
 dnl Helper-macros