diff --git a/ilcsoft/root.py b/ilcsoft/root.py
index 17296df4..dcddf536 100644
--- a/ilcsoft/root.py
+++ b/ilcsoft/root.py
@@ -107,10 +107,11 @@ def compile(self):
 
         self.envcmake['CMAKE_INSTALL_PREFIX']=self.installPath
 
-        self.envcmake['GSL_ROOT_DIR']=gsl.installPath
-        self.envcmake['GSL_CONFIG_EXECUTABLE']=gsl_bindir+'/gsl-config'
+        if Version(self.version) <= "6.30.04":
+            self.envcmake['GSL_ROOT_DIR']=gsl.installPath
+            self.envcmake['GSL_CONFIG_EXECUTABLE']=gsl_bindir+'/gsl-config'
+            self.envcmake.setdefault( 'gsl_shared',     'ON' )
 
-        self.envcmake.setdefault( 'gsl_shared',     'ON' )
         self.envcmake.setdefault( 'gdml',           'ON' )
         self.envcmake.setdefault( 'minuit2',        'ON' )
         self.envcmake.setdefault( 'roofit',         'ON' )