1 files changed, 1 insertions, 0 deletions

diff --git a/py/nlr.h b/py/nlr.h
index 43a0c4f6a9..83ab251344 100644
--- a/py/nlr.h
+++ b/py/nlr.h
@@ -29,6 +29,7 @@
 
 #include <limits.h>
 #include <setjmp.h>
+#include <assert.h>
 
 typedef struct _nlr_buf_t nlr_buf_t;
 struct _nlr_buf_t {