diff --git a/integration_test.go b/integration_test.go
index 575148a..9bd3024 100644
--- a/integration_test.go
+++ b/integration_test.go
@@ -302,9 +302,9 @@
 		"src/google/protobuf/wrappers.proto":             "github.com/golang/protobuf/v2/types/known;known_proto",
 		"src/google/protobuf/descriptor.proto":           "github.com/golang/protobuf/v2/types/descriptor;descriptor_proto",
 		"src/google/protobuf/compiler/plugin.proto":      "github.com/golang/protobuf/v2/types/plugin;plugin_proto",
-		"conformance/conformance.proto":                  "github.com/golang/protobuf/v2/internal/testprotos/conformance;conformance_proto",
-		"src/google/protobuf/test_messages_proto2.proto": "github.com/golang/protobuf/v2/internal/testprotos/conformance;conformance_proto",
-		"src/google/protobuf/test_messages_proto3.proto": "github.com/golang/protobuf/v2/internal/testprotos/conformance;conformance_proto",
+		"conformance/conformance.proto":                  "github.com/golang/protobuf/v2/internal/testprotos/conformance;conformance",
+		"src/google/protobuf/test_messages_proto2.proto": "github.com/golang/protobuf/v2/internal/testprotos/conformance;conformance",
+		"src/google/protobuf/test_messages_proto3.proto": "github.com/golang/protobuf/v2/internal/testprotos/conformance;conformance",
 	}
 	for pbpath, gopath := range files {
 		b, err := ioutil.ReadFile(filepath.Join(repoRoot, pbpath))
diff --git a/internal/testprotos/conformance/conformance.pb.go b/internal/testprotos/conformance/conformance.pb.go
index 1bd4725..6a718fc 100644
--- a/internal/testprotos/conformance/conformance.pb.go
+++ b/internal/testprotos/conformance/conformance.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // source: conformance/conformance.proto
 
-package conformance_proto
+package conformance
 
 import (
 	protoreflect "github.com/golang/protobuf/v2/reflect/protoreflect"
@@ -622,15 +622,15 @@
 	0x52, 0x45, 0x5f, 0x55, 0x4e, 0x4b, 0x4e, 0x4f, 0x57, 0x4e, 0x5f, 0x50, 0x41, 0x52, 0x53, 0x49,
 	0x4e, 0x47, 0x5f, 0x54, 0x45, 0x53, 0x54, 0x10, 0x03, 0x12, 0x0d, 0x0a, 0x09, 0x4a, 0x53, 0x50,
 	0x42, 0x5f, 0x54, 0x45, 0x53, 0x54, 0x10, 0x04, 0x12, 0x14, 0x0a, 0x10, 0x54, 0x45, 0x58, 0x54,
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+	0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
diff --git a/internal/testprotos/conformance/test_messages_proto2.pb.go b/internal/testprotos/conformance/test_messages_proto2.pb.go
index 499e8b8..04e0621 100644
--- a/internal/testprotos/conformance/test_messages_proto2.pb.go
+++ b/internal/testprotos/conformance/test_messages_proto2.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // source: google/protobuf/test_messages_proto2.proto
 
-package conformance_proto
+package conformance
 
 import (
 	protoreflect "github.com/golang/protobuf/v2/reflect/protoreflect"
@@ -1793,15 +1793,15 @@
 	0x65, 0x73, 0x74, 0x5f, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x73, 0x2e, 0x70, 0x72, 0x6f,
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-	0x6f, 0x62, 0x75, 0x66, 0x5f, 0x74, 0x65, 0x73, 0x74, 0x5f, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67,
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+	0x6d, 0x61, 0x6e, 0x63, 0x65, 0xf8, 0x01, 0x01,
 }
 
 var (
diff --git a/internal/testprotos/conformance/test_messages_proto3.pb.go b/internal/testprotos/conformance/test_messages_proto3.pb.go
index 6c48a7a..28233e5 100644
--- a/internal/testprotos/conformance/test_messages_proto3.pb.go
+++ b/internal/testprotos/conformance/test_messages_proto3.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // source: google/protobuf/test_messages_proto3.proto
 
-package conformance_proto
+package conformance
 
 import (
 	protoreflect "github.com/golang/protobuf/v2/reflect/protoreflect"
@@ -1978,16 +1978,16 @@
 	0x69, 0x67, 0x6e, 0x45, 0x6e, 0x75, 0x6d, 0x12, 0x0f, 0x0a, 0x0b, 0x46, 0x4f, 0x52, 0x45, 0x49,
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 	0x49, 0x47, 0x4e, 0x5f, 0x42, 0x41, 0x52, 0x10, 0x01, 0x12, 0x0f, 0x0a, 0x0b, 0x46, 0x4f, 0x52,
-	0x45, 0x49, 0x47, 0x4e, 0x5f, 0x42, 0x41, 0x5a, 0x10, 0x02, 0x42, 0x89, 0x01, 0x0a, 0x28, 0x63,
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 	0x6f, 0x6d, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62,
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+	0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (