1 files changed, 2 insertions, 0 deletions
diff --git a/error.c b/error.c
index ad93675b86..9c024dddd8 100644
--- a/error.c
+++ b/error.c
@@ -547,6 +547,8 @@ Init_Exception()
     va_list args;\
     char buf[BUFSIZ];\
     va_init_list(args,fmt);\
+    vsprintf(buf, fmt, args);\
+    va_end(args);\
     rb_raise(exc_new2(klass, buf));\
 }