diff --git a/buildscript/constants.toml b/buildscript/constants.toml
index f5cf9d0..291e896 100644
--- a/buildscript/constants.toml
+++ b/buildscript/constants.toml
@@ -48,13 +48,13 @@ value = "1.602176634e-19 C"
 [[constant]]
 enum_name = "ElectronMass"
 pretty_name = "Electron mass"
-strings = ["me", "m_e", "electronmass"]
+strings = ["electronmass"]
 value = "9.1093837015-31 kg"
 
 [[constant]]
 enum_name = "ProtonMass"
 pretty_name = "Proton mass"
-strings = ["mp", "m_p", "protonmass"]
+strings = ["protonmass"]
 value = "1.67262192369e-27 kg"
 
 [[constant]]