diff --git a/simpegEM/TDEM/SurveyTDEM.py b/simpegEM/TDEM/SurveyTDEM.py
index 845cb515..c9a67856 100644
--- a/simpegEM/TDEM/SurveyTDEM.py
+++ b/simpegEM/TDEM/SurveyTDEM.py
@@ -146,14 +146,11 @@ class SurveyTDEM(Survey.BaseSurvey):
             for tx in self.txList:
                 for rx in tx.rxList:
                     Ptv = rx.projectFieldsDeriv(tx, self.mesh, self.prob.timeMesh, u, v, adjoint=True)
+                    Ptv = Ptv.reshape((-1, self.prob.timeMesh.nN), order='F')
                     if rx.projField not in f: # first time we are projecting
-                        Ptv = Ptv.reshape((-1, 1, self.prob.timeMesh.nN), order='F')
                         f[tx, rx.projField, :] = Ptv
-                    else:
-                        Ptv = Ptv.reshape((-1, self.prob.timeMesh.nN), order='F')
-                        addedPtv = f[tx, rx.projField, :]  + Ptv
-                        addedPtv = addedPtv.reshape((-1, 1, self.prob.timeMesh.nN), order='F')
-                        f[tx, rx.projField, :] = addedPtv
+                    else: # there are already fields, so let's add to them!
+                        f[tx, rx.projField, :] += Ptv
             return f