1 files changed, 1 insertions, 1 deletions
diff --git a/main.c b/main.c
index 61d10bc08..1cb73e58a 100755
--- a/main.c
+++ b/main.c
@@ -451,7 +451,7 @@ void NORETURN __fatal_error(const char *msg) {
 
 #ifndef NDEBUG
 void MP_WEAK __assert_func(const char *file, int line, const char *func, const char *expr) {
-    printf("Assertion '%s' failed, at file %s:%d\n", expr, file, line);
+    mp_printf(&mp_plat_print, "Assertion '%s' failed, at file %s:%d\n", expr, file, line);
     __fatal_error("Assertion failed");
 }
 #endif