diff --git a/src/newgrf_cargo.h b/src/newgrf_cargo.h
--- a/src/newgrf_cargo.h
+++ b/src/newgrf_cargo.h
@@ -19,7 +19,7 @@ enum {
 	CC_PIECE_GOODS  = 1 <<  5, ///< Piece goods (Livestock, Wood, Steel, Paper)
 	CC_LIQUID       = 1 <<  6, ///< Liquids (Oil, Water, Rubber)
 	CC_REFRIGERATED = 1 <<  7, ///< Refrigerated cargo (Food, Fruit)
-	CC_HAZARDOUS    = 1 <<  8, ///< Hazardous cargo (Nucleair Fuel, Explosives, etc.)
+	CC_HAZARDOUS    = 1 <<  8, ///< Hazardous cargo (Nuclear Fuel, Explosives, etc.)
 	CC_COVERED      = 1 <<  9, ///< Covered/Sheltered Freight (Transporation in Box Vans, Silo Wagons, etc.)
 	CC_SPECIAL      = 1 << 15  ///< Special bit used for livery refit tricks instead of normal cargoes.
 };