1 files changed, 4 insertions, 0 deletions
diff --git a/py/gc.c b/py/gc.c
index 7d4cac6e74..054a3cc315 100644
--- a/py/gc.c
+++ b/py/gc.c
@@ -6,6 +6,8 @@
 #include "mpconfig.h"
 #include "gc.h"
 
+#if MICROPY_ENABLE_GC
+
 // a machine word is big enough to hold a pointer
 /*
 #define BYTES_PER_WORD (8)
@@ -380,3 +382,5 @@ int main(void) {
     gc_dump_at();
 }
 */
+
+#endif // MICROPY_ENABLE_GC