1 files changed, 4 insertions, 0 deletions
diff --git a/printf.c b/printf.c
index a65f418..e5e3a36 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) == sizeof(long) ? FLAGS_LONG : FLAGS_LONG_LONG);
+      format++;
+    }
 
     // evaluate specifier
     switch (*format) {