diff --git a/src/src.cmake b/src/src.cmake
index 641e8c58f..d817f72c3 100644
--- a/src/src.cmake
+++ b/src/src.cmake
@@ -506,7 +506,9 @@ list(APPEND HEADERS ${qite_HEADERS})
 list(APPEND SOURCES ${qite_SOURCES})
 
 if(IS_WEBKIT OR IS_WEBENGINE)
-    include_directories(${PROJECT_SOURCE_DIR}/iris/include/iris)
+    if(BUNDLED_IRIS)
+        include_directories(${PROJECT_SOURCE_DIR}/iris/include/iris)
+    endif()
     list(APPEND HEADERS
         chatview_webkit.h
         chatviewtheme.h