diff --git a/test/test-api-fill.c b/test/test-api-fill.c
index a32dfa27..2ad06808 100644
--- a/test/test-api-fill.c
+++ b/test/test-api-fill.c
@@ -271,7 +271,7 @@ int main(void) {
     mi_free(p);
   };
 
-
+  #if !(MI_TRACK_VALGRIND || MI_TRACK_ASAN)
   CHECK_BODY("fill-freed-small") {
     size_t malloc_size = MI_SMALL_SIZE_MAX / 2;
     uint8_t* p = (uint8_t*)mi_malloc(malloc_size);
@@ -286,6 +286,7 @@ int main(void) {
     // First sizeof(void*) bytes will contain housekeeping data, skip these
     result = check_debug_fill_freed(p + sizeof(void*), malloc_size - sizeof(void*));
   };
+  #endif
 #endif
 
   // ---------------------------------------------------
@@ -309,7 +310,7 @@ bool check_zero_init(uint8_t* p, size_t size) {
 
 #if MI_DEBUG >= 2
 bool check_debug_fill_uninit(uint8_t* p, size_t size) {
-#if MI_TRACK_VALGRIND
+#if MI_TRACK_VALGRIND || MI_TRACK_ASAN
   (void)p; (void)size;
   return true; // when compiled with valgrind we don't init on purpose
 #else