diff --git a/qt/widgets/common/CMakeLists.txt b/qt/widgets/common/CMakeLists.txt
index 3a7d040bb9836d1b34b1808da80fd3b55f1334cd..5ac514e32e19e165867ba4b386902e3cf1789046 100644
--- a/qt/widgets/common/CMakeLists.txt
+++ b/qt/widgets/common/CMakeLists.txt
@@ -693,7 +693,7 @@ mtd_add_qt_library (TARGET_NAME MantidQtWidgetsCommon
   QT4_DEFS
     USE_QTWEBKIT
   INCLUDE_DIRS
-  inc
+    inc
     ${PYTHON_INCLUDE_PATH}
   LINK_LIBS
     ${TARGET_LIBRARIES}