diff --git a/mkspecs/features/qt_module_pris.prf b/mkspecs/features/qt_module_pris.prf
index 653f7538150dbcf4d4ff3f96799653acb2c8a5fa..11f56198d1e24783f4254efd4d8f76fcc4e1326b 100644
--- a/mkspecs/features/qt_module_pris.prf
+++ b/mkspecs/features/qt_module_pris.prf
@@ -56,7 +56,8 @@ else: \
         MODULE_PRIVATE_INCLUDES = \$\$QT_MODULE_INCLUDE_BASE/$$MODULE_INCNAME/$$VERSION \
                                   \$\$QT_MODULE_INCLUDE_BASE/$$MODULE_INCNAME/$$VERSION/$$MODULE_INCNAME
     }
-    !git_build:!equals(_PRO_FILE_PWD_, $$OUT_PWD) {
+    !git_build:if(!equals(_PRO_FILE_PWD_, $$OUT_PWD) \
+                  |if(!prefix_build:!equals(MODULE_BASE_DIR, $$[QT_HOST_PREFIX]))) {
         pub_inc = $$replace(MODULE_INCLUDES, ^\\\$\\\$QT_MODULE_INCLUDE_BASE, $$MODULE_BASE_DIR/include)
         priv_inc = $$replace(MODULE_PRIVATE_INCLUDES, ^\\\$\\\$QT_MODULE_INCLUDE_BASE, $$MODULE_BASE_DIR/include)
         force_independent {