diff --git a/src/glsl/glcpp/tests/073-if-in-ifdef.c b/src/glsl/glcpp/tests/073-if-in-ifdef.c
index b9155b521e0..61a48097ca3 100644
--- a/src/glsl/glcpp/tests/073-if-in-ifdef.c
+++ b/src/glsl/glcpp/tests/073-if-in-ifdef.c
@@ -1,4 +1,4 @@
-#if UNDEF
+#ifdef UNDEF
 #if UNDEF > 1
 #endif
 #endif