diff --git a/src/optionstr.c b/src/optionstr.c
index 8672665..4dda7a0 100644
--- a/src/optionstr.c
+++ b/src/optionstr.c
@@ -120,7 +120,7 @@
 				NULL};
 static char *(p_fcl_values[]) = {"all", NULL};
 #endif
-static char *(p_cot_values[]) = {"menu", "menuone", "longest", "preview", "popup", "popuphidden", "noinsert", "noselect", "fuzzy", "nosort", NULL};
+static char *(p_cot_values[]) = {"menu", "menuone", "longest", "preview", "popup", "popuphidden", "noinsert", "noselect", "fuzzy", "nosort", "preinsert", NULL};
 #ifdef BACKSLASH_IN_FILENAME
 static char *(p_csl_values[]) = {"slash", "backslash", NULL};
 #endif