diff --git a/plugins/include/amxconst.inc b/plugins/include/amxconst.inc
index 45f838d2..1e7ac379 100755
--- a/plugins/include/amxconst.inc
+++ b/plugins/include/amxconst.inc
@@ -221,16 +221,6 @@ public stock const Float:NULL_VECTOR[3];
 #define LANG_SERVER     0
 #define LANG_PLAYER     -1
 
-/**
- * Placeholder that replaces the admin name in show_activity_custom()
- */
-#define ACTIVITY_STR_NAME      "$an"
-
-/**
- * Placeholder that replaces the client prefix in show_activity_custom()
- */
-#define ACTIVITY_STR_PREFIX    "$px"
-
 /**
  * @section Client print native constants
  */