1 files changed, 10 insertions, 4 deletions
diff --git a/error.c b/error.c
index 6a48210b4e..393603ff7a 100644
--- a/error.c
+++ b/error.c
@@ -34,14 +34,20 @@ err_snprintf(buf, len, fmt, args)
     int len;
     va_list args;
 {
+    int n;
+
     if (!ruby_sourcefile) {
 	vsnprintf(buf, len, fmt, args);
+	return;
+    }
+    else if (ruby_sourceline == 0) {
+	n = snprintf(buf, len, "%s: ", ruby_sourcefile);
     }
     else {
-	int n = snprintf(buf, len, "%s:%d: ", ruby_sourcefile, ruby_sourceline);
-	if (len > n) {
-	    vsnprintf((char*)buf+n, len-n, fmt, args);
-	}
+	n = snprintf(buf, len, "%s:%d: ", ruby_sourcefile, ruby_sourceline);
+    }
+    if (len > n) {
+	vsnprintf((char*)buf+n, len-n, fmt, args);
     }
 }