diff --git a/src/backend/storage/ipc/procarray.c b/src/backend/storage/ipc/procarray.c
index dadaa958a84..0555b02a8d9 100644
--- a/src/backend/storage/ipc/procarray.c
+++ b/src/backend/storage/ipc/procarray.c
@@ -4212,8 +4212,8 @@ GlobalVisTestIsRemovableXid(GlobalVisState *state, TransactionId xid)
 	/*
 	 * Convert 32 bit argument to FullTransactionId. We can do so safely
 	 * because we know the xid has to, at the very least, be between
-	 * [oldestXid, nextFullXid), i.e. within 2 billion of xid. To avoid taking
-	 * a lock to determine either, we can just compare with
+	 * [oldestXid, nextXid), i.e. within 2 billion of xid. To avoid taking a
+	 * lock to determine either, we can just compare with
 	 * state->definitely_needed, which was based on those value at the time
 	 * the current snapshot was built.
 	 */