diff --git a/test/IRGen/fulfillment_map_key_equality.swift b/test/IRGen/fulfillment_map_key_equality.swift
index 5241df69cf343..29a8b35d5af51 100644
--- a/test/IRGen/fulfillment_map_key_equality.swift
+++ b/test/IRGen/fulfillment_map_key_equality.swift
@@ -2,8 +2,12 @@
 
 // FIXME: We just need to adjust the check line below, there's no inherent
 // reason for this not to be tested on wasm.
+
 // UNSUPPORTED: CPU=wasm32
 
+// This test does not support 32 bit right now.
+// UNSUPPORTED: PTRSIZE=32
+
 // rdar://160649141
 
 public protocol P1 {}