diff --git a/tests/test_laser_profiles.py b/tests/test_laser_profiles.py
index 2073743e..1cb78afc 100644
--- a/tests/test_laser_profiles.py
+++ b/tests/test_laser_profiles.py
@@ -41,7 +41,7 @@ def gaussian():
     t_peak = 0.0e-15  # s
     tau = 30.0e-15  # s
     w0 = 5.0e-6  # m
-    profile = GaussianProfile(wavelength, pol, laser_energy, w0, tau, t_peak)
+    profile = GaussianProfile(wavelength, pol, laser_energy, w0, a=0, b=0, tau, gdd=0, t_peak)
 
     return profile