1 files changed, 4 insertions, 0 deletions
diff --git a/py/malloc.c b/py/malloc.c
index db2578d9ad..76c3fe6cad 100644
--- a/py/malloc.c
+++ b/py/malloc.c
@@ -88,9 +88,13 @@ void *m_malloc_with_finaliser(int num_bytes) {
 
 void *m_malloc0(int num_bytes) {
     void *ptr = m_malloc(num_bytes);
+#if MICROPY_ENABLE_GC
+    // the GC already zeros out all memory
+#else
     if (ptr != NULL) {
         memset(ptr, 0, num_bytes);
     }
+#endif
     return ptr;
 }