diff --git a/.idea/codeStyles/Project.xml b/.idea/codeStyles/Project.xml
index f603881..b735a35 100644
--- a/.idea/codeStyles/Project.xml
+++ b/.idea/codeStyles/Project.xml
@@ -1,5 +1,12 @@
 <component name="ProjectCodeStyleConfiguration">
   <code_scheme name="Project" version="173">
+    <Objective-C-extensions>
+      <extensions>
+        <pair source="cc" header="h" fileNamingConvention="LISP_CASE" />
+        <pair source="c" header="h" fileNamingConvention="NONE" />
+        <pair source="cu" header="cuh" fileNamingConvention="NONE" />
+      </extensions>
+    </Objective-C-extensions>
     <clangFormatSettings>
       <option name="ENABLED" value="true" />
     </clangFormatSettings>