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-rw-r--r--unix/main.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/unix/main.c b/unix/main.c
index c04045a3a0..552df9b804 100644
--- a/unix/main.c
+++ b/unix/main.c
@@ -201,8 +201,8 @@ int usage(char **argv) {
impl_opts_cnt++;
#if MICROPY_ENABLE_GC
printf(
-" heapsize=<n> -- set the heap size for the GC\n"
-);
+" heapsize=<n> -- set the heap size for the GC (default %ld)\n"
+, heap_size);
impl_opts_cnt++;
#endif