diff --git a/tracking/wakepotential.py b/tracking/wakepotential.py
index 06bf7371322a4443cd205fde6640b7f49e045422..71aec2b8756ad9a352d028a9820fdedad22df750 100644
--- a/tracking/wakepotential.py
+++ b/tracking/wakepotential.py
@@ -276,10 +276,10 @@ class WakePotential(Element):
             Wp = signal.convolve(profile0, W0*-1, mode='same')*dtau0
         elif wake_type == "Wxdip":
             dipole0 = self.dipole_moment(bunch, "x", tau0)
-            Wp = signal.convolve(profile0*dipole0, W0*-1, mode='same')*dtau0
+            Wp = signal.convolve(profile0*dipole0, W0, mode='same')*dtau0
         elif wake_type == "Wydip":
             dipole0 = self.dipole_moment(bunch, "y", tau0)
-            Wp = signal.convolve(profile0*dipole0, W0*-1, mode='same')*dtau0
+            Wp = signal.convolve(profile0*dipole0, W0, mode='same')*dtau0
         else:
             raise ValueError("This type of wake is not taken into account.")