1 files changed, 1 insertions, 0 deletions

diff --git a/scope.c b/scope.c
index 11a9c5b..6706765 100644
--- a/scope.c
+++ b/scope.c
@@ -35,6 +35,7 @@ scope *s;
 	}
 
 	free(s);
+	s = NULL;
 }
 
 /*Copied from Compilers, Aho*/