diff --git a/google-cloud-spanner/src/test/java/com/google/cloud/spanner/it/ITWriteTest.java b/google-cloud-spanner/src/test/java/com/google/cloud/spanner/it/ITWriteTest.java
index 17f5f8e0ec9..9c0546db3be 100644
--- a/google-cloud-spanner/src/test/java/com/google/cloud/spanner/it/ITWriteTest.java
+++ b/google-cloud-spanner/src/test/java/com/google/cloud/spanner/it/ITWriteTest.java
@@ -211,7 +211,8 @@ private Timestamp write(Mutation m) {
   }
 
   private Mutation.WriteBuilder baseInsert() {
-    return Mutation.newInsertOrUpdateBuilder("T").set("K").to(lastKey = uniqueString());
+    String table = dialect.dialect == Dialect.POSTGRESQL ? "public.T" : "T";
+    return Mutation.newInsertOrUpdateBuilder(table).set("K").to(lastKey = uniqueString());
   }
 
   private Struct readLastRow(String... columns) {