1 files changed, 4 insertions, 0 deletions
diff --git a/printf.c b/printf.c
index a65f418..ec1f2ef 100644
--- a/printf.c
+++ b/printf.c
@@ -425,6 +425,10 @@ static size_t _vsnprintf(char* buffer, size_t buffer_len, const char* format, va
       flags |= FLAGS_LONG_LONG;
       format++;
     }
+    if ((*format == 'z')) {
+        flags |= (sizeof(size_t) == 8 ? FLAGS_LONG_LONG : FLAGS_LONG);
+        format++;
+    }
 
     // evaluate specifier
     switch (*format) {