diff --git a/options-table.c b/options-table.c
index b328a57f..4385c9fd 100644
--- a/options-table.c
+++ b/options-table.c
@@ -959,7 +959,7 @@ const struct options_table_entry options_table[] = {
 	{ .name = "prompt-cursor-colour",
 	  .type = OPTIONS_TABLE_COLOUR,
 	  .scope = OPTIONS_TABLE_SESSION,
-	  .default_num = 6,
+	  .default_num = -1,
 	  .text = "Colour of the cursor when in the command prompt."
 	},