diff --git a/Modules/FindQt4.cmake b/Modules/FindQt4.cmake
index 97402a0f1..bd1902764 100644
--- a/Modules/FindQt4.cmake
+++ b/Modules/FindQt4.cmake
@@ -592,7 +592,7 @@ IF (QT4_QMAKE_FOUND)
     )
   
   # Set QT_QTASSISTANTCLIENT_INCLUDE_DIR
-  FIND_PATH(QT_QTASSISTANTCLIENT_INCLUDE_DIR QtAssistantClient
+  FIND_PATH(QT_QTASSISTANTCLIENT_INCLUDE_DIR QAssistantClient
     PATHS
     ${QT_INCLUDE_DIR}/QtAssistant
     ${QT_LIBRARY_DIR}/QtAssistant.framework/Headers