1 files changed, 1 insertions, 1 deletions
diff --git a/file.c b/file.c
index ddaca16b6e..f5a21a2619 100644
--- a/file.c
+++ b/file.c
@@ -1997,7 +1997,7 @@ sys_fail2(s1, s2)
 
     len = RSTRING(s1)->len + RSTRING(s2)->len + 5;
     buf = ALLOCA_N(char, len);
-    snprintf(buf, len, "%s or %s", RSTRING(s1)->ptr, RSTRING(s2)->ptr);
+    snprintf(buf, len, "(%s, %s)", RSTRING(s1)->ptr, RSTRING(s2)->ptr);
     rb_sys_fail(buf);
 }