diff --git a/src/gallium/auxiliary/util/u_snprintf.c b/src/gallium/auxiliary/util/u_snprintf.c
index 0d54299b28a..65bdd0df2b7 100644
--- a/src/gallium/auxiliary/util/u_snprintf.c
+++ b/src/gallium/auxiliary/util/u_snprintf.c
@@ -829,7 +829,7 @@ util_vsnprintf(char *str, size_t size, const char *format, va_list args)
 					break;
 				default:
 					intptr = va_arg(args, int *);
-					*intptr = len;
+					*intptr = (int)len;
 					break;
 				}
 				break;