diff --git a/main/file.c b/main/file.c
index a5a558c3507e6bfcd5fb6c726b460fdd9f443006..9315f225b0b741f02b370e6cd55e72c805ca0b82 100644
--- a/main/file.c
+++ b/main/file.c
@@ -1120,7 +1120,7 @@ static int show_file_formats(int fd, int argc, char *argv[])
 	struct ast_format *f;
 	int count_fmt = 0;
 
-	if (argc != 3)
+	if (argc != 4)
 		return RESULT_SHOWUSAGE;
 	ast_cli(fd, FORMAT, "Format", "Name", "Extensions");