diff --git a/doxygen.config b/doxygen.config
index 07c281500..8848e44f4 100644
--- a/doxygen.config
+++ b/doxygen.config
@@ -8,6 +8,7 @@ FILE_PATTERNS          = *.c \
                          *.cpp \
                          *.h \
                          *.inc \
+                         *.hpp \
                          *.md
 RECURSIVE              = YES
 EXCLUDE                = ./build ./3rdParty ./CMake ./cmake-build-debug