diff --git a/cif_core.dic b/cif_core.dic
index 507dbaa..91d69c0 100644
--- a/cif_core.dic
+++ b/cif_core.dic
@@ -26597,7 +26597,7 @@ save_atom_type_scat.inv_mott_bethe_as
     [ a_1, a_2, ... , a_N ].
 
     f(s; Z~0~) =
-    Z~0~ - 8π * r~B~ * s^2^ * {c + Sum[ a~i~ * exp(-b~i~ * s^2^), i=1:N]}
+    Z~0~ - 8π^2^ * r~B~ * s^2^ * {c + Sum[ a~i~ * exp(-b~i~ * s^2^), i=1:N]}
 
     where s = sin(θ)/λ, r~B~ is the Bohr radius, and Z~0~ is the number of
     electrons for the atom or ion. θ is the diffraction angle and λ is the
@@ -26654,7 +26654,7 @@ save_atom_type_scat.inv_mott_bethe_bs
     [ b_1, b_2, ... , b_N ].
 
     f(s; Z~0~) =
-    Z~0~ - 8π * r~B~ * s^2^ * {c + Sum[ a~i~ * exp(-b~i~ * s^2^), i=1:N]}
+    Z~0~ - 8π^2^ * r~B~ * s^2^ * {c + Sum[ a~i~ * exp(-b~i~ * s^2^), i=1:N]}
 
     where s = sin(θ)/λ, r~B~ is the Bohr radius, and Z~0~ is the number of
     electrons for the atom or ion. θ is the diffraction angle and λ is the
@@ -26711,7 +26711,7 @@ save_atom_type_scat.inv_mott_bethe_c
     c.
 
     f(s; Z~0~) =
-    Z~0~ - 8π * r~B~ * s^2^ * {c + Sum[ a~i~ * exp(-b~i~ * s^2^), i=1:N]}
+    Z~0~ - 8π^2^ * r~B~ * s^2^ * {c + Sum[ a~i~ * exp(-b~i~ * s^2^), i=1:N]}
 
     where s = sin(θ)/λ, r~B~ is the Bohr radius, and Z~0~ is the number of
     electrons for the atom or ion. θ is the diffraction angle and λ is the