diff --git a/gpac.spec b/gpac.spec
index be6fa98..f9c011d 100644
--- a/gpac.spec
+++ b/gpac.spec
@@ -253,9 +253,10 @@ rm -rf $RPM_BUILD_ROOT%{_bindir}/%{osmo}
 }
 
 #hack
-if [ %{_lib} = lib64 ] ; then 
+%if %{_lib} == "lib64"
   mv $RPM_BUILD_ROOT%{_prefix/lib $RPM_BUILD_ROOT%{_libdir}
-fi
+%endif
+
 ## kwizart - rpmlint gpac no-ldconfig-symlink
 ln -sf  libgpac.so.%{version}-DEV $RPM_BUILD_ROOT%{_libdir}/libgpac.so.0
 ln -sf  libgpac.so.0 $RPM_BUILD_ROOT%{_libdir}/libgpac.so