diff --git a/external/qt/CMakeLists.txt b/external/qt/CMakeLists.txt
index be2d03c..23b59ba 100644
--- a/external/qt/CMakeLists.txt
+++ b/external/qt/CMakeLists.txt
@@ -154,6 +154,10 @@ else()
 
     set(qt_libs_list "")
     if (WIN32)
+        target_include_directories(external_qt SYSTEM
+        INTERFACE
+            ${qt_loc}/mkspecs/win32-msvc
+        )
         set(qt_libs
             ${common_qt_libs}
             lib/${qt_lib_prefix}Qt5Core
@@ -172,6 +176,10 @@ else()
             desktop-app::external_angle
         )
     elseif (APPLE)
+        target_include_directories(external_qt SYSTEM
+        INTERFACE
+            ${qt_loc}/mkspecs/macx-clang
+        )
         set(qt_libs
             ${common_qt_libs}
             lib/${qt_lib_prefix}Qt5Core
diff --git a/external/qt/qt6/CMakeLists.txt b/external/qt/qt6/CMakeLists.txt
index a9fc2e4..798e204 100644
--- a/external/qt/qt6/CMakeLists.txt
+++ b/external/qt/qt6/CMakeLists.txt
@@ -137,6 +137,10 @@ else()
 
     set(qt_libs_list "")
     if (WIN32)
+        target_include_directories(external_qt SYSTEM
+        INTERFACE
+            ${qt_loc}/mkspecs/win32-msvc
+        )
         set(qt_libs
             ${common_qt_libs}
             lib/${qt_lib_prefix}Qt6WindowsUIAutomationSupport
@@ -154,6 +158,10 @@ else()
             desktop-app::external_angle
         )
     elseif (APPLE)
+        target_include_directories(external_qt SYSTEM
+        INTERFACE
+            ${qt_loc}/mkspecs/macx-clang
+        )
         set(qt_libs
             ${common_qt_libs}
             lib/${qt_lib_prefix}Qt6BundledFreetype