diff --git a/src/src.pro b/src/src.pro
index f4d5cf4..5707037 100644
--- a/src/src.pro
+++ b/src/src.pro
@@ -8,8 +8,7 @@ GIT_EXEC_DIR = "$$(ProgramFiles)\\Git\\bin"
 # check for Qt >= 4.8.0
 CUR_QT = $$[QT_VERSION]
 
-# WARNING greaterThan is an undocumented function
-!greaterThan(CUR_QT, 4.8) {
+lessThan(CUR_QT, 4.8) {
         error("Sorry I need Qt 4.8.0 or later, you seem to have Qt $$CUR_QT instead")
 }