1 files changed, 2 insertions, 1 deletions
diff --git a/ext/date/date_strftime.c b/ext/date/date_strftime.c
index 13072962a2..54324dad09 100644
--- a/ext/date/date_strftime.c
+++ b/ext/date/date_strftime.c
@@ -53,7 +53,8 @@ date_strftime_with_tmx(char *s, size_t maxsize, const char *format,
     auto char tbuf[100];
     ptrdiff_t i;
     int v, w;
-    int precision, flags, colons;
+    size_t colons;
+    int precision, flags;
     char padding;
     /* LOCALE_[OE] and COLONS are actually modifiers, not flags */
     enum {LEFT, CHCASE, LOWER, UPPER, LOCALE_O, LOCALE_E, COLONS};