diff --git a/CMakeLists.txt b/CMakeLists.txt
index d921d46d..2a1d305e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -16,7 +16,10 @@ if(COMMAND register_component)
     register_component()
 else()
     add_library(u8g2 ${COMPONENT_SRCS})
-    target_include_directories(u8g2 PUBLIC "$<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/csrc>" "$<INSTALL_INTERFACE:include>")
+    target_include_directories(u8g2 PUBLIC 
+    "$<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/csrc>"
+    "$<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/cppsrc>"
+    "$<INSTALL_INTERFACE:include>")
 endif()
 
 install(TARGETS u8g2