diff --git a/src/msspec/calculator.py b/src/msspec/calculator.py
index d78a1c9..ca18df4 100644
--- a/src/msspec/calculator.py
+++ b/src/msspec/calculator.py
@@ -945,7 +945,7 @@ class _PED(_MSCALCULATOR):
         """
         data = self._get_scan(scan_type='theta_phi', level=level, theta=theta,
                               phi=phi, kinetic_energy=kinetic_energy, data=data,
-                              malloc={'NPH_M': 8000}, **kwargs)
+                              **kwargs)
         return data
 
     def get_energy_scan(self, phi=0, theta=0,
diff --git a/src/msspec/spec/fortran/memalloc/dim_mod.f b/src/msspec/spec/fortran/memalloc/dim_mod.f
index e0432a4..7a84c04 100644
--- a/src/msspec/spec/fortran/memalloc/dim_mod.f
+++ b/src/msspec/spec/fortran/memalloc/dim_mod.f
@@ -60,7 +60,7 @@ C       ===============================================================
 
 C          N_BESS=100*NL_M
 C          N_GAUNT=5*NL_M
-          N_BESS=200*NL_M
+          N_BESS=300*NL_M
           N_GAUNT=10*NL_M
 
           NLTWO=2*NL_M