diff --git a/cmake/QtDocsHelpers.cmake b/cmake/QtDocsHelpers.cmake
index 8e4bd28918d..b5b734f5c4a 100644
--- a/cmake/QtDocsHelpers.cmake
+++ b/cmake/QtDocsHelpers.cmake
@@ -54,8 +54,15 @@ function(qt_internal_add_docs)
     # Generate include dir list
     set(target_include_dirs_file "${doc_output_dir}/$<CONFIG>/includes.txt")
 
-    set(include_paths_property "$<TARGET_PROPERTY:${target},INCLUDE_DIRECTORIES>")
-    if (NOT target_type STREQUAL "INTERFACE_LIBRARY" AND NOT target_type STREQUAL "UTILITY")
+
+    set(prop_prefix "")
+    if(target_type STREQUAL "INTERFACE_LIBRARY")
+        set(prop_prefix "INTERFACE_")
+    endif()
+    set(include_path_prop "${prop_prefix}INCLUDE_DIRECTORIES")
+
+    set(include_paths_property "$<TARGET_PROPERTY:${target},${include_path_prop}>")
+    if (NOT target_type STREQUAL "UTILITY")
         file(GENERATE
             OUTPUT ${target_include_dirs_file}
             CONTENT "-I$<JOIN:${include_paths_property},\n-I>"