diff --git a/src/apps/glteapot/error.h b/src/apps/glteapot/error.h
index 26d27aa76b..1e655d36cb 100644
--- a/src/apps/glteapot/error.h
+++ b/src/apps/glteapot/error.h
@@ -12,6 +12,8 @@ extern void fatalerror(const char *);
 
 #define DEBUGGING 1
 
+#undef assert
+
 #ifdef DEBUGGING
 
 #define assert(a) if (!(a)) { \