diff --git a/build/pythonqt.prf b/build/pythonqt.prf
--- a/build/pythonqt.prf
+++ b/build/pythonqt.prf
@@ -7,6 +7,7 @@ win32:PYTHON_VERSION=27
 unix:PYTHON_VERSION=2.7
 PYTHON_PATH=C:/Python27/
 PYTHON_LIB=C:/Python27/libs/
+INCLUDEPATH += $$[QT_INSTALL_HEADERS]/PythonQt
 macx {
   # for macx you need to have the Python development kit installed as framework
   INCLUDEPATH += /System/Library/Frameworks/Python.framework/Headers