diff --git a/etc/tools/ParaView4Functions b/etc/tools/ParaView4Functions
index fd9fb24..dc014bd 100644
--- a/etc/tools/ParaView4Functions
+++ b/etc/tools/ParaView4Functions
@@ -332,10 +332,10 @@ addQtSupport()
         QtMajor=$1
         QtMinor=$2
 
-        if [ $QtMajor -lt 4 -o $QtMinor -lt 5 ]
+        if [[ ($QtMajor -lt 4) || ($QtMajor -eq 4  && $QtMinor -lt 5) ]]
         then
             echo "*** Error: Qt version provided < 4.5"
-            echo "***     Please use the -qmake option to specify the location of a version of Qt >= 4.3 "
+            echo "***     Please use the -qmake option to specify the location of a version of Qt >= 4.5 "
             echo "***     e.g."
             echo "***         -qmake /usr/local/qt-4.6.2/bin/qmake"
             echo "***         -qmake $installBASE/qt-4.6.2/bin/qmake"
diff --git a/etc/tools/ParaViewFunctions b/etc/tools/ParaViewFunctions
index c899556..5c8df79 100644
--- a/etc/tools/ParaViewFunctions
+++ b/etc/tools/ParaViewFunctions
@@ -332,10 +332,10 @@ addQtSupport()
         QtMajor=$1
         QtMinor=$2
 
-        if [ $QtMajor -lt 4 -o $QtMinor -lt 5 ]
+        if [[ ($QtMajor -lt 4) || ($QtMajor -eq 4  && $QtMinor -lt 5) ]]
         then
             echo "*** Error: Qt version provided < 4.5"
-            echo "***     Please use the -qmake option to specify the location of a version of Qt >= 4.3 "
+            echo "***     Please use the -qmake option to specify the location of a version of Qt >= 4.5 "
             echo "***     e.g."
             echo "***         -qmake /usr/local/qt-4.6.2/bin/qmake"
             echo "***         -qmake $installBASE/qt-4.6.2/bin/qmake"