diff --git a/src/glsl/glcpp/tests/074-elif-undef.c b/src/glsl/glcpp/tests/074-elif-undef.c
new file mode 100644
index 00000000000..67aac8977e0
--- /dev/null
+++ b/src/glsl/glcpp/tests/074-elif-undef.c
@@ -0,0 +1,3 @@
+#ifndef UNDEF
+#elif UNDEF < 0
+#endif