diff --git a/qt.sh b/qt.sh
index df8d24e..5b7c94c 100755
--- a/qt.sh
+++ b/qt.sh
@@ -20,9 +20,10 @@ for QTDIR in ${QT_PREFIXES} ; do
 done
 unset QT_PREFIXES
 
-if ! echo ${PATH} | /bin/grep -q $QTDIR/bin ; then
-   PATH=$QTDIR/bin:${PATH}
-fi
+case :$PATH: in
+    *:$QTDIR/bin:*) ;;
+    *) PATH=$QTDIR/bin:$PATH ;;
+esac
 
 QTINC="$QTDIR/include"
 QTLIB="$QTDIR/lib"
diff --git a/qt3.spec b/qt3.spec
index 64a5645..1e621a1 100644
--- a/qt3.spec
+++ b/qt3.spec
@@ -6,7 +6,7 @@
 Name: qt3
 Summary: The shared library for the Qt 3 GUI toolkit
 Version: 3.3.8b
-Release: 67%{?dist}
+Release: 68%{?dist}
 License: QPL or GPLv2 or GPLv3
 Group: System Environment/Libraries
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
@@ -646,6 +646,9 @@ rm -rf %{buildroot}
 
 
 %changelog
+* Mon Mar 28 2016 Ville Skyttä <ville.skytta@iki.fi> - 3.3.8b-68
+- qt.sh: Avoid unnecessary command invocations
+
 * Wed Feb 10 2016 Rex Dieter <rdieter@fedoraproject.org> 3.3.8b-67
 - update gccX-buildkey.patch