diff --git a/make/qt-defs.mk b/make/qt-defs.mk
index 5308d02b..5f2f7f9c 100644
--- a/make/qt-defs.mk
+++ b/make/qt-defs.mk
@@ -14,7 +14,8 @@ else
 		INCLUDE       += -I$(QT_PREFIX)/include
 	else
 		ifeq ($(QT_MAJOR_VERSION),4)
-		QT_PREFIX = $(HOME)/opt/qt4
+		#QT_PREFIX = $(HOME)/opt/qt4
+		QT_PREFIX  = /usr
 		INCLUDE += -I$(QT_PREFIX)/include \
 			$(addprefix -I$(QT_PREFIX)/include/, \
 			Qt Qt3Support QtAssistant QtCore QtDesigner \