diff --git a/src/lang/ido.txt b/src/lang/ido.txt
--- a/src/lang/ido.txt
+++ b/src/lang/ido.txt
@@ -188,31 +188,31 @@ STR_COLOUR_GREY                         
 STR_COLOUR_WHITE                                                :Blanka
 
 # Units used in OpenTTD
-STR_UNITS_VELOCITY_IMPERIAL                                     :{COMMA} mph
-STR_UNITS_VELOCITY_METRIC                                       :{COMMA} km/h
-STR_UNITS_VELOCITY_SI                                           :{COMMA} m/s
-
-STR_UNITS_POWER_IMPERIAL                                        :{COMMA}kp
-STR_UNITS_POWER_METRIC                                          :{COMMA}kp
-STR_UNITS_POWER_SI                                              :{COMMA}kW
-
-
-STR_UNITS_WEIGHT_SHORT_METRIC                                   :{COMMA}t
-STR_UNITS_WEIGHT_SHORT_SI                                       :{COMMA}kg
-
-STR_UNITS_WEIGHT_LONG_METRIC                                    :{COMMA} tun{P o i}
-STR_UNITS_WEIGHT_LONG_SI                                        :{COMMA} kg
-
-STR_UNITS_VOLUME_SHORT_METRIC                                   :{COMMA}l
-STR_UNITS_VOLUME_SHORT_SI                                       :{COMMA}m³
-
-STR_UNITS_VOLUME_LONG_METRIC                                    :{COMMA} litr{P o i}
-STR_UNITS_VOLUME_LONG_SI                                        :{COMMA} m³
-
-STR_UNITS_FORCE_SI                                              :{COMMA} kN
-
-STR_UNITS_HEIGHT_IMPERIAL                                       :{COMMA} pd
-STR_UNITS_HEIGHT_SI                                             :{COMMA} m
+STR_UNITS_VELOCITY_IMPERIAL                                     :{DECIMAL} mph
+STR_UNITS_VELOCITY_METRIC                                       :{DECIMAL} km/h
+STR_UNITS_VELOCITY_SI                                           :{DECIMAL} m/s
+
+STR_UNITS_POWER_IMPERIAL                                        :{DECIMAL}kp
+STR_UNITS_POWER_METRIC                                          :{DECIMAL}kp
+STR_UNITS_POWER_SI                                              :{DECIMAL}kW
+
+
+STR_UNITS_WEIGHT_SHORT_METRIC                                   :{DECIMAL}t
+STR_UNITS_WEIGHT_SHORT_SI                                       :{DECIMAL}kg
+
+STR_UNITS_WEIGHT_LONG_METRIC                                    :{DECIMAL} tun{P o i}
+STR_UNITS_WEIGHT_LONG_SI                                        :{DECIMAL} kg
+
+STR_UNITS_VOLUME_SHORT_METRIC                                   :{DECIMAL}l
+STR_UNITS_VOLUME_SHORT_SI                                       :{DECIMAL}m³
+
+STR_UNITS_VOLUME_LONG_METRIC                                    :{DECIMAL} litr{P o i}
+STR_UNITS_VOLUME_LONG_SI                                        :{DECIMAL} m³
+
+STR_UNITS_FORCE_SI                                              :{DECIMAL} kN
+
+STR_UNITS_HEIGHT_IMPERIAL                                       :{DECIMAL} pd
+STR_UNITS_HEIGHT_SI                                             :{DECIMAL} m
 
 # Common window strings