diff --git a/TurTLE/DNS.py b/TurTLE/DNS.py
index ecc7133c5a01909b0bf68d6403b9036f0ed977ee..1c83e8a4bd6bb84302892fd36092cb6b60b313c7 100644
--- a/TurTLE/DNS.py
+++ b/TurTLE/DNS.py
@@ -811,7 +811,7 @@ class DNS(_code):
         if type(opt.fk1) == type(None):
             opt.fk1 = self.parameters['fk1']
         if type(opt.forcing_type) == type(None):
-            opt.injection_rate = self.parameters['forcing_type']
+            opt.forcing_type = self.parameters['forcing_type']
         if type(opt.injection_rate) == type(None):
             opt.injection_rate = self.parameters['injection_rate']
         if type(opt.dealias_type) == type(None):