diff --git a/CMakeModules/FindPythonQt.cmake b/CMakeModules/FindPythonQt.cmake
index d1764a3b9..519e1c93e 100644
--- a/CMakeModules/FindPythonQt.cmake
+++ b/CMakeModules/FindPythonQt.cmake
@@ -2,6 +2,9 @@
 #
 # Sets PYTHONQT_FOUND, PYTHONQT_INCLUDE_DIR, PYTHONQT_LIBRARY, PYTHONQT_LIBRARIES
 #
+# Also sets PYTHONQT_INCLUDE_DIRS to add whatever directories
+#   that are needed for extensions.
+#
 
 # Python is required
 find_package(PythonLibs)
diff --git a/src/libcalamaresui/CMakeLists.txt b/src/libcalamaresui/CMakeLists.txt
index efd0ebb29..79598d514 100644
--- a/src/libcalamaresui/CMakeLists.txt
+++ b/src/libcalamaresui/CMakeLists.txt
@@ -48,7 +48,8 @@ endif()
 
 if( WITH_PYTHONQT )
     include_directories(${PYTHON_INCLUDE_DIRS})
-    include_directories(${PYTHONQT_INCLUDE_DIR})
+    # *_DIRS because we also use extensions
+    include_directories(${PYTHONQT_INCLUDE_DIRS})
 
     list( APPEND calamaresui_SOURCES
         modulesystem/PythonQtViewModule.cpp
diff --git a/src/libcalamaresui/modulesystem/PythonQtViewModule.cpp b/src/libcalamaresui/modulesystem/PythonQtViewModule.cpp
index 9d0aa95e2..2af6d81e7 100644
--- a/src/libcalamaresui/modulesystem/PythonQtViewModule.cpp
+++ b/src/libcalamaresui/modulesystem/PythonQtViewModule.cpp
@@ -31,7 +31,7 @@
 #include "JobQueue.h"
 
 #include <PythonQt.h>
-#include <extensions/PythonQt_QtAll/PythonQt_QtAll.h>
+#include <PythonQt_QtAll.h>
 
 #include <QDir>
 #include <QPointer>