diff --git a/plugins/wmpa/hexchat-plugin.h b/plugins/wmpa/hexchat-plugin.h
index cec27a6f..aa9befdc 100644
--- a/plugins/wmpa/hexchat-plugin.h
+++ b/plugins/wmpa/hexchat-plugin.h
@@ -9,13 +9,6 @@
 #include <time.h>
 #include <tchar.h>
 
-#define XCHAT_IFACE_MAJOR     1
-#define XCHAT_IFACE_MINOR     9
-#define XCHAT_IFACE_MICRO     11
-#define XCHAT_IFACE_VERSION   ((XCHAT_IFACE_MAJOR * 10000) + \
-                              (XCHAT_IFACE_MINOR * 100) + \
-                              (XCHAT_IFACE_MICRO))
-
 #define XCHAT_PRI_HIGHEST  127
 #define XCHAT_PRI_HIGH     64
 #define XCHAT_PRI_NORM     0
diff --git a/src/common/hexchat-plugin.h b/src/common/hexchat-plugin.h
index 40eca898..ddf85085 100644
--- a/src/common/hexchat-plugin.h
+++ b/src/common/hexchat-plugin.h
@@ -4,13 +4,6 @@
 
 #include <time.h>
 
-#define XCHAT_IFACE_MAJOR	1
-#define XCHAT_IFACE_MINOR	9
-#define XCHAT_IFACE_MICRO	11
-#define XCHAT_IFACE_VERSION	((XCHAT_IFACE_MAJOR * 10000) + \
-				 (XCHAT_IFACE_MINOR * 100) + \
-				 (XCHAT_IFACE_MICRO))
-
 #define XCHAT_PRI_HIGHEST	127
 #define XCHAT_PRI_HIGH		64
 #define XCHAT_PRI_NORM		0