diff --git a/modules/proto/src/smithyproto/proto3/Compiler.scala b/modules/proto/src/smithytranslate/proto3/internals/Compiler.scala
similarity index 100%
rename from modules/proto/src/smithyproto/proto3/Compiler.scala
rename to modules/proto/src/smithytranslate/proto3/internals/Compiler.scala
diff --git a/modules/proto/src/smithyproto/proto3/CompilerOptions.scala b/modules/proto/src/smithytranslate/proto3/internals/CompilerOptions.scala
similarity index 100%
rename from modules/proto/src/smithyproto/proto3/CompilerOptions.scala
rename to modules/proto/src/smithytranslate/proto3/internals/CompilerOptions.scala
diff --git a/modules/proto/src/smithyproto/proto3/MetadataProcessor.scala b/modules/proto/src/smithytranslate/proto3/internals/MetadataProcessor.scala
similarity index 100%
rename from modules/proto/src/smithyproto/proto3/MetadataProcessor.scala
rename to modules/proto/src/smithytranslate/proto3/internals/MetadataProcessor.scala
diff --git a/modules/proto/src/smithyproto/proto3/ModelPreProcessor.scala b/modules/proto/src/smithytranslate/proto3/internals/ModelPreProcessor.scala
similarity index 100%
rename from modules/proto/src/smithyproto/proto3/ModelPreProcessor.scala
rename to modules/proto/src/smithytranslate/proto3/internals/ModelPreProcessor.scala
diff --git a/modules/proto/src/smithyproto/proto3/Namespacing.scala b/modules/proto/src/smithytranslate/proto3/internals/Namespacing.scala
similarity index 100%
rename from modules/proto/src/smithyproto/proto3/Namespacing.scala
rename to modules/proto/src/smithytranslate/proto3/internals/Namespacing.scala
diff --git a/modules/proto/src/smithyproto/proto3/OutputFile.scala b/modules/proto/src/smithytranslate/proto3/internals/OutputFile.scala
similarity index 100%
rename from modules/proto/src/smithyproto/proto3/OutputFile.scala
rename to modules/proto/src/smithytranslate/proto3/internals/OutputFile.scala
diff --git a/modules/proto/src/smithyproto/proto3/ProtoIR.scala b/modules/proto/src/smithytranslate/proto3/internals/ProtoIR.scala
similarity index 100%
rename from modules/proto/src/smithyproto/proto3/ProtoIR.scala
rename to modules/proto/src/smithytranslate/proto3/internals/ProtoIR.scala
diff --git a/modules/proto/src/smithyproto/proto3/Renderer.scala b/modules/proto/src/smithytranslate/proto3/internals/Renderer.scala
similarity index 100%
rename from modules/proto/src/smithyproto/proto3/Renderer.scala
rename to modules/proto/src/smithytranslate/proto3/internals/Renderer.scala
diff --git a/modules/proto/src/smithyproto/Text.scala b/modules/proto/src/smithytranslate/proto3/internals/Text.scala
similarity index 100%
rename from modules/proto/src/smithyproto/Text.scala
rename to modules/proto/src/smithytranslate/proto3/internals/Text.scala
diff --git a/modules/proto/tests/src/CompilerRendererSuite.scala b/modules/proto/tests/src/smithytranslate/proto3/internals/CompilerRendererSuite.scala
similarity index 100%
rename from modules/proto/tests/src/CompilerRendererSuite.scala
rename to modules/proto/tests/src/smithytranslate/proto3/internals/CompilerRendererSuite.scala
diff --git a/modules/proto/tests/src/CompilerSuite.scala b/modules/proto/tests/src/smithytranslate/proto3/internals/CompilerSuite.scala
similarity index 100%
rename from modules/proto/tests/src/CompilerSuite.scala
rename to modules/proto/tests/src/smithytranslate/proto3/internals/CompilerSuite.scala
diff --git a/modules/proto/tests/src/ModelPrePocessorSpec.scala b/modules/proto/tests/src/smithytranslate/proto3/internals/ModelPrePocessorSpec.scala
similarity index 100%
rename from modules/proto/tests/src/ModelPrePocessorSpec.scala
rename to modules/proto/tests/src/smithytranslate/proto3/internals/ModelPrePocessorSpec.scala
diff --git a/modules/proto/tests/src/ProtoValidator.scala b/modules/proto/tests/src/smithytranslate/proto3/internals/ProtoValidator.scala
similarity index 100%
rename from modules/proto/tests/src/ProtoValidator.scala
rename to modules/proto/tests/src/smithytranslate/proto3/internals/ProtoValidator.scala
diff --git a/modules/proto/tests/src/ProtocInvocationHelper.scala b/modules/proto/tests/src/smithytranslate/proto3/internals/ProtocInvocationHelper.scala
similarity index 100%
rename from modules/proto/tests/src/ProtocInvocationHelper.scala
rename to modules/proto/tests/src/smithytranslate/proto3/internals/ProtocInvocationHelper.scala
diff --git a/modules/proto/tests/src/ProtocRunner.scala b/modules/proto/tests/src/smithytranslate/proto3/internals/ProtocRunner.scala
similarity index 100%
rename from modules/proto/tests/src/ProtocRunner.scala
rename to modules/proto/tests/src/smithytranslate/proto3/internals/ProtocRunner.scala
diff --git a/modules/proto/tests/src/RendererSuite.scala b/modules/proto/tests/src/smithytranslate/proto3/internals/RendererSuite.scala
similarity index 100%
rename from modules/proto/tests/src/RendererSuite.scala
rename to modules/proto/tests/src/smithytranslate/proto3/internals/RendererSuite.scala