diff --git a/src/industry_cmd.cpp b/src/industry_cmd.cpp
--- a/src/industry_cmd.cpp
+++ b/src/industry_cmd.cpp
@@ -2089,8 +2089,8 @@ static void ChangeIndustryProduction(Ind
 				case 0xE:                         // increment production
 					increment = res == 0x0D ? -1 : 1;
 					break;
-				case 0xF:                         // Set production to higher word of register 0x100
-					i->prod_level = Clamp(GB(GetRegister(0x100), 16, 16), PRODLEVEL_MINIMUM, PRODLEVEL_MAXIMUM);
+				case 0xF:                         // Set production to third byte of register 0x100
+					i->prod_level = Clamp(GB(GetRegister(0x100), 16, 8), PRODLEVEL_MINIMUM, PRODLEVEL_MAXIMUM);
 					break;
 			}
 		}