diff --git a/packages/graphile-build-pg/src/plugins/PgMutationCreatePlugin.js b/packages/graphile-build-pg/src/plugins/PgMutationCreatePlugin.js
index c770d5199..8c095bdee 100644
--- a/packages/graphile-build-pg/src/plugins/PgMutationCreatePlugin.js
+++ b/packages/graphile-build-pg/src/plugins/PgMutationCreatePlugin.js
@@ -106,7 +106,8 @@ export default (function PgMutationCreatePlugin(
               }
             )}`,
             isPgCreateInputType: true,
-            pgInflection: table,
+            pgInflection: table, // TODO:v5: remove - TYPO!
+            pgIntrospection: table,
           }
         );
         const PayloadType = newWithHooks(
diff --git a/packages/graphile-build-pg/src/plugins/PgMutationUpdateDeletePlugin.js b/packages/graphile-build-pg/src/plugins/PgMutationUpdateDeletePlugin.js
index 3f61e0e66..4f89dc394 100644
--- a/packages/graphile-build-pg/src/plugins/PgMutationUpdateDeletePlugin.js
+++ b/packages/graphile-build-pg/src/plugins/PgMutationUpdateDeletePlugin.js
@@ -326,7 +326,8 @@ export default (async function PgMutationUpdateDeletePlugin(
                     isPgUpdateNodeInputType: mode === "update",
                     isPgDeleteInputType: mode === "delete",
                     isPgDeleteNodeInputType: mode === "delete",
-                    pgInflection: table,
+                    pgInflection: table, // TODO:v5: remove - TYPO!
+                    pgIntrospection: table,
                     isMutationInput: true,
                   }
                 );
@@ -482,7 +483,8 @@ export default (async function PgMutationUpdateDeletePlugin(
                     isPgUpdateByKeysInputType: mode === "update",
                     isPgDeleteInputType: mode === "delete",
                     isPgDeleteByKeysInputType: mode === "delete",
-                    pgInflection: table,
+                    pgInflection: table, // TODO:v5: remove - TYPO!
+                    pgIntrospection: table,
                     pgKeys: keys,
                     isMutationInput: true,
                   }