1 files changed, 3 insertions, 1 deletions
diff --git a/printf.c b/printf.c
index 0893216..5203932 100644
--- a/printf.c
+++ b/printf.c
@@ -104,7 +104,9 @@ static inline void _out_null(char character, char* buffer, size_t idx, size_t ma
 static inline void _out_char(char character, char* buffer, size_t idx, size_t maxlen)
 {
   (void)buffer; (void)idx; (void)maxlen;
-  _putchar(character);
+  if (character) {
+    _putchar(character);
+  }
 }