diff --git a/res/res_agi.c b/res/res_agi.c
index 6113c7a3cf..cf1679daf9 100644
--- a/res/res_agi.c
+++ b/res/res_agi.c
@@ -2661,7 +2661,7 @@ static int handle_speechcreate(struct ast_channel *chan, AGI *agi, int argc, con
 static int handle_speechset(struct ast_channel *chan, AGI *agi, int argc, const char * const argv[])
 {
 	/* Check for minimum arguments */
-        if (argc != 3)
+	if (argc != 4)
 		return RESULT_SHOWUSAGE;
 
 	/* Check to make sure speech structure exists */