diff --git a/src/ex_docmd.c b/src/ex_docmd.c
index 85fecbb..46d8115 100644
--- a/src/ex_docmd.c
+++ b/src/ex_docmd.c
@@ -287,6 +287,7 @@
 # define ex_endwhile		ex_ni
 # define ex_eval		ex_ni
 # define ex_execute		ex_ni
+# define ex_incdec		ex_ni
 # define ex_finally		ex_ni
 # define ex_finish		ex_ni
 # define ex_function		ex_ni