diff --git a/src/hooks.c b/src/hooks.c
index 2ff2667c..492ea318 100644
--- a/src/hooks.c
+++ b/src/hooks.c
@@ -123,7 +123,8 @@ pathman_join_pathlist_hook(PlannerInfo *root,
 	/* We don't support these join types (since inner will be parameterized) */
 	if (jointype == JOIN_FULL ||
 		jointype == JOIN_RIGHT ||
-		jointype == JOIN_UNIQUE_INNER)
+		jointype == JOIN_UNIQUE_INNER ||
+		jointype == JOIN_RIGHT_SEMI)
 		return;
 
 	/* Skip if inner table is not allowed to act as parent (e.g. FROM ONLY) */