diff --git a/plugins/include/halflife.inc b/plugins/include/halflife.inc
index 63f23ad3..bf00e7dc 100644
--- a/plugins/include/halflife.inc
+++ b/plugins/include/halflife.inc
@@ -42,7 +42,8 @@
 #define SOURCE_SDK_EPISODE2			30		/**< SDK+Engine released after Episode 2/Orange Box */
 #define SOURCE_SDK_EPISODE2VALVE	35		/**< SDK+Engine released after Episode 2/Orange Box */
 #define SOURCE_SDK_LEFT4DEAD		40		/**< Engine released after Left 4 Dead (no SDK yet) */
-#define SOURCE_SDK_LEFT4DEAD2		50		/**< Engine released after Left 4 Dead 2 (no SDK yet) */
#define SOURCE_SDK_ALIENSWARM		60		/**< SDK+Engine released after Alien Swarm */

+#define SOURCE_SDK_LEFT4DEAD2		50		/**< Engine released after Left 4 Dead 2 (no SDK yet) */
+#define SOURCE_SDK_ALIENSWARM		60		/**< SDK+Engine released after Alien Swarm */
 
 #define MOTDPANEL_TYPE_TEXT		0	/**< Treat msg as plain text */
 #define MOTDPANEL_TYPE_INDEX	1	/**< Msg is auto determined by the engine */