diff --git a/src/resources/const/const.dat b/src/resources/const/const.dat
index b6412ab..2d51028 100644
--- a/src/resources/const/const.dat
+++ b/src/resources/const/const.dat
@@ -428,7 +428,7 @@ mH_amu_rel                helion relative atomic mass
 h_shield_shift            helion shielding shift                                   5.99674300e-05                       1.00000000e-10 CODATA2022                                   
 F_hyperfine_Cs-133        hyperfine transition frequency of Cs-133                 9.19263177e+09 1 / s                 0.00000000e+00 CODATA2022                                   
 aSi_220_ideal             lattice spacing of ideal Si (220)                        1.92015572e-08 cm                    3.20000000e-16 CODATA2022                                   
-eta                       luminous efficacy                                        6.83000000e-05 s3 rad2 cd / (g cm2)  0.00000000e+00 CODATA2022                                   
+eta                       luminous efficacy                                        6.83000000e-05 s3 rad2 cd/(g cm2)    0.00000000e+00 CODATA2022                                   
 rg_n_MHz_T                neutron gyromag. ratio in MHz/T                          2.91646931e+01 MHz T^-1              6.90000000e-06 CODATA2022                                   
 mN_amu_rel                neutron relative atomic mass                             1.00866492e+00                       4.90000000e-10 CODATA2022                                   
 mu_N_invm                 nuclear magneton in inverse meter per tesla              2.54262341e-02 m^-1 T^-1             7.80000000e-12 CODATA2022