diff --git a/smithy-aws-protocol-tests/model/restJson1/http-headers.smithy b/smithy-aws-protocol-tests/model/restJson1/http-headers.smithy
index 2b5115004df..8cf94b929fc 100644
--- a/smithy-aws-protocol-tests/model/restJson1/http-headers.smithy
+++ b/smithy-aws-protocol-tests/model/restJson1/http-headers.smithy
@@ -432,14 +432,13 @@ apply NullAndEmptyHeadersClient @httpRequestTests([
         headers: {
             "X-B": ""
             "X-C": ""
-        }
+        },
         body: "",
         params: {
             a: null,
             b: "",
             c: [],
         },
-        appliesTo: "client",
     },
 ])
 
@@ -462,13 +461,12 @@ apply NullAndEmptyHeadersServer @httpResponseTests([
         headers: {
             "X-B": ""
             "X-C": ""
-        }
+        },
         params: {
             a: null,
             b: "",
             c: [],
         },
-        appliesTo: "server",
     },
 ])
 
diff --git a/smithy-aws-protocol-tests/model/restXml/http-headers.smithy b/smithy-aws-protocol-tests/model/restXml/http-headers.smithy
index 6fc91964de1..0cba9619b4d 100644
--- a/smithy-aws-protocol-tests/model/restXml/http-headers.smithy
+++ b/smithy-aws-protocol-tests/model/restXml/http-headers.smithy
@@ -375,14 +375,13 @@ apply NullAndEmptyHeadersClient @httpRequestTests([
         headers: {
             "X-B": ""
             "X-C": ""
-        }
+        },
         body: "",
         params: {
             a: null,
             b: "",
             c: [],
         },
-        appliesTo: "client",
     },
 ])
 
@@ -405,14 +404,13 @@ apply NullAndEmptyHeadersServer @httpResponseTests([
         headers: {
             "X-B": ""
             "X-C": ""
-        }
+        },
         body: "",
         params: {
             a: null,
             b: "",
             c: [],
         },
-        appliesTo: "server",
     },
 ])