diff --git a/src/script/script_error.h b/src/script/script_error.h
index 342b481dc..ff6236b7e 100644
--- a/src/script/script_error.h
+++ b/src/script/script_error.h
@@ -54,9 +54,6 @@ typedef enum ScriptError_t
     /* softfork safeness */
     SCRIPT_ERR_DISCOURAGE_UPGRADABLE_NOPS,
 
-    /* count acks */
-    SCRIPT_ERR_COUNT_ACKS_INVALID_PARAM,
-
     SCRIPT_ERR_ERROR_COUNT
 } ScriptError;