diff --git a/RbcUkqcd.hpp b/RbcUkqcd.hpp
index ca0ea1a..2165d9c 100644
--- a/RbcUkqcd.hpp
+++ b/RbcUkqcd.hpp
@@ -180,7 +180,7 @@ void RbcUkqcd::addC0LightZMobiusLCDSolver(Application &app, const std::string so
 
     transformCastPar.field = gaugeTransform;
     app.createModule<MUtilities::ColourMatrixSinglePrecisionCast>(prefix + "_gaugeTransform_fp32",
-                                                                  gaugeCastPar);
+                                                                  transformCastPar);
   }
 
   // Scaled DWF action + FP32 version
@@ -254,7 +254,7 @@ void RbcUkqcd::addM0LightLCDSolver(Application &app, const std::string solverNam
 
     transformCastPar.field = gaugeTransform;
     app.createModule<MUtilities::ColourMatrixSinglePrecisionCast>(prefix + "_gaugeTransform_fp32",
-                                                                  gaugeCastPar);
+                                                                  transformCastPar);
   }
 
   // Scaled DWF action + FP32 version