From 3f4ca2d3acffd3e4f82ef7f849cce2f3c7a84a84 Mon Sep 17 00:00:00 2001
From: Rupa Schomaker <rupa@rupa.com>
Date: Wed, 7 Apr 2010 12:23:57 -0500
Subject: [PATCH] MODAPP-407

---
 src/mod/applications/mod_db/mod_db.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/mod/applications/mod_db/mod_db.c b/src/mod/applications/mod_db/mod_db.c
index c5dfc11fb4..59d711f913 100644
--- a/src/mod/applications/mod_db/mod_db.c
+++ b/src/mod/applications/mod_db/mod_db.c
@@ -539,7 +539,10 @@ SWITCH_STANDARD_API(group_api_function)
 		limit_execute_sql_callback(sql, group_callback, &cbt);
 		switch_safe_free(sql);
 
-		*(buf + (strlen(buf) - 1)) = '\0';
+		if (!zstr(buf)) {
+    	*(buf + (strlen(buf) - 1)) = '\0';
+    }
+
 		stream->write_function(stream, "%s", buf);
 
 		goto done;