diff --git a/Doxyfile b/Doxyfile
index 15521cc71..942e456ad 100644
--- a/Doxyfile
+++ b/Doxyfile
@@ -1184,7 +1184,7 @@ IMAGE_PATH             = doc/doxygen/images
 # need to set EXTENSION_MAPPING for the extension otherwise the files are not
 # properly processed by Doxygen.
 
-INPUT_FILTER           = "python proto2cpp.py"
+INPUT_FILTER           = "python doc/doxygen/filters/proto2cpp.py"
 
 # The FILTER_PATTERNS tag can be used to specify filters on a per file pattern
 # basis. Doxygen will compare the file name with each pattern and apply the
diff --git a/proto2cpp.py b/doc/doxygen/filters/proto2cpp.py
similarity index 100%
rename from proto2cpp.py
rename to doc/doxygen/filters/proto2cpp.py