diff --git a/modules/filters/mod_include.c b/modules/filters/mod_include.c
index 97bfa4e180..16c1086a07 100644
--- a/modules/filters/mod_include.c
+++ b/modules/filters/mod_include.c
@@ -1196,7 +1196,7 @@ static int handle_fsize(ap_file_t *in, request_rec *r, const char *error, int si
 #if defined(AP_OFF_T_IS_QUAD)
                     ap_snprintf(tag, sizeof(tag), "%qd", finfo.size);
 #else
-                    ap_snprintf(tag, sizeof(tag), "%ld", finfo.size);
+                    ap_snprintf(tag, sizeof(tag), "%ld", (long)finfo.size);
 #endif
                     l = strlen(tag);    /* grrr */
                     for (x = 0; x < l; x++) {