diff --git a/aws/sdk-codegen/src/main/kotlin/software/amazon/smithy/rustsdk/customize/RemoveDefaultsDecorator.kt b/aws/sdk-codegen/src/main/kotlin/software/amazon/smithy/rustsdk/customize/RemoveDefaultsDecorator.kt
index a613f812b3b..1e1e205f45e 100644
--- a/aws/sdk-codegen/src/main/kotlin/software/amazon/smithy/rustsdk/customize/RemoveDefaultsDecorator.kt
+++ b/aws/sdk-codegen/src/main/kotlin/software/amazon/smithy/rustsdk/customize/RemoveDefaultsDecorator.kt
@@ -35,7 +35,7 @@ class RemoveDefaultsDecorator : ClientCodegenDecorator {
             "com.amazonaws.drs#Validity",
             "com.amazonaws.drs#CostOptimizationConfiguration\$burstBalanceThreshold",
             "com.amazonaws.drs#CostOptimizationConfiguration\$burstBalanceDeltaThreshold",
-            "com.amazonaws.drs#ListStagingAccountsRequest\$maxResults",
+            "com.amazonaws.drs.synthetic#ListStagingAccountsInput\$maxResults",
             "com.amazonaws.drs#StrictlyPositiveInteger",
             "com.amazonaws.drs#MaxResultsType",
             "com.amazonaws.drs#MaxResultsReplicatingSourceServers",
@@ -45,8 +45,8 @@ class RemoveDefaultsDecorator : ClientCodegenDecorator {
             "com.amazonaws.evidently#ResultsPeriod",
         ),
         "com.amazonaws.location#LocationService" to setOf(
-            "com.amazonaws.location#ListPlaceIndexesRequest\$MaxResults",
-            "com.amazonaws.location#SearchPlaceIndexForSuggestionsRequest\$MaxResults",
+            "com.amazonaws.location.synthetic#ListPlaceIndexesInput\$MaxResults",
+            "com.amazonaws.location.synthetic#SearchPlaceIndexForSuggestionsInput\$MaxResults",
             "com.amazonaws.location#PlaceIndexSearchResultLimit",
         ),
         "com.amazonaws.paymentcryptographydata#PaymentCryptographyDataPlane" to setOf(
@@ -61,6 +61,14 @@ class RemoveDefaultsDecorator : ClientCodegenDecorator {
             "com.amazonaws.s3control#PublicAccessBlockConfiguration\$BlockPublicPolicy",
             "com.amazonaws.s3control#PublicAccessBlockConfiguration\$RestrictPublicBuckets",
         ),
+        "com.amazonaws.iot#AWSIotService" to setOf(
+            "com.amazonaws.iot#ThingConnectivity\$connected",
+            "com.amazonaws.iot.synthetic#UpdateProvisioningTemplateInput\$enabled",
+            "com.amazonaws.iot.synthetic#CreateProvisioningTemplateInput\$enabled",
+            "com.amazonaws.iot.synthetic#DescribeProvisioningTemplateOutput\$enabled",
+            "com.amazonaws.iot.synthetic#DescribeProvisioningTemplateOutput\$enabled",
+            "com.amazonaws.iot#ProvisioningTemplateSummary\$enabled",
+        ),
     ).map { (k, v) -> k.shapeId() to v.map { it.shapeId() }.toSet() }.toMap()
 
     private fun applies(service: ServiceShape) =