diff --git a/tutorial/tutorialspatialparameters_decoupled.hh b/tutorial/tutorialspatialparameters_decoupled.hh
index 786a885031ccd8f083dd88966ee89ef1482f400a..b903ca699006e9ca1ecb3cbf8b49ab45b3753cce 100644
--- a/tutorial/tutorialspatialparameters_decoupled.hh
+++ b/tutorial/tutorialspatialparameters_decoupled.hh
@@ -103,7 +103,7 @@ public:
         materialLawParams_.setPe(500);
 
         // Brooks-Corey shape parameters
-        materialLawParams_.setAlpha(2);
+        materialLawParams_.setLambda(2);
     }
 
 private: