diff --git a/src/primitives/array/array.h b/src/primitives/array/array.h
index 52be0bd..4c50ce6 100644
--- a/src/primitives/array/array.h
+++ b/src/primitives/array/array.h
@@ -51,7 +51,7 @@ BEGIN_C_LINKAGE
   return (TYPE *)(header + 1);                                                   \
 }())
 #define wapp_array_pop(TYPE, ARRAY_PTR) ([&]() {                                 \
-  if (ARRAY_PTR != NULL || _array_count((u8 *)ARRAY_PTR) == 0) {                 \
+  if (ARRAY_PTR == NULL || _array_count((u8 *)ARRAY_PTR) == 0) {                 \
     TYPE result{};                                                               \
     return result;                                                               \
   }                                                                              \