diff --git a/util/cpp/domacro.c b/util/cpp/domacro.c
index d9db2b2dc..c7e203442 100644
--- a/util/cpp/domacro.c
+++ b/util/cpp/domacro.c
@@ -365,8 +365,9 @@ do_endif()
 {
 	PushBack();
 	skipline();
-	if (nestlevel-- <= svnestlevel[nestcount])
+	if (nestlevel <= svnestlevel[nestcount])
 		error("#endif without corresponding #if");
+	else nestlevel--;
 }
 
 PRIVATE