diff --git a/src/lang/irish.txt b/src/lang/irish.txt
--- a/src/lang/irish.txt
+++ b/src/lang/irish.txt
@@ -191,39 +191,39 @@ STR_COLOUR_WHITE                                                :Bán
 STR_COLOUR_RANDOM                                               :Randamach
 
 # Units used in OpenTTD
-STR_UNITS_VELOCITY_IMPERIAL                                     :{COMMA}{NBSP}m/u
-STR_UNITS_VELOCITY_METRIC                                       :{COMMA}{NBSP}km/u
-STR_UNITS_VELOCITY_SI                                           :{COMMA}{NBSP}m/s
+STR_UNITS_VELOCITY_IMPERIAL                                     :{DECIMAL}{NBSP}m/u
+STR_UNITS_VELOCITY_METRIC                                       :{DECIMAL}{NBSP}km/u
+STR_UNITS_VELOCITY_SI                                           :{DECIMAL}{NBSP}m/s
 STR_UNITS_VELOCITY_GAMEUNITS                                    :{DECIMAL}{NBSP}{P th th th dt t}íl/lá
 
-STR_UNITS_POWER_IMPERIAL                                        :{COMMA}hp
-STR_UNITS_POWER_METRIC                                          :{COMMA}hp
-STR_UNITS_POWER_SI                                              :{COMMA}{NBSP}kW
-
-
-STR_UNITS_WEIGHT_SHORT_IMPERIAL                                 :{COMMA}{NBSP}t
-STR_UNITS_WEIGHT_SHORT_METRIC                                   :{COMMA}t
-STR_UNITS_WEIGHT_SHORT_SI                                       :{COMMA}kg
-
-STR_UNITS_WEIGHT_LONG_IMPERIAL                                  :{COMMA}{NBSP}tona
-STR_UNITS_WEIGHT_LONG_METRIC                                    :{COMMA}{NBSP}{P "th" "th" "th" "dt" "t"}ona
-STR_UNITS_WEIGHT_LONG_SI                                        :{COMMA}{NBSP}kg
-
-STR_UNITS_VOLUME_SHORT_IMPERIAL                                 :{COMMA}{NBSP}gal
-STR_UNITS_VOLUME_SHORT_METRIC                                   :{COMMA}{NBSP}l
-STR_UNITS_VOLUME_SHORT_SI                                       :{COMMA}{NBSP}m³
-
-STR_UNITS_VOLUME_LONG_IMPERIAL                                  :{COMMA}{NBSP}galún
-STR_UNITS_VOLUME_LONG_METRIC                                    :{COMMA}{NBSP}lítear
-STR_UNITS_VOLUME_LONG_SI                                        :{COMMA}{NBSP}m³
-
-STR_UNITS_FORCE_IMPERIAL                                        :{COMMA}{NBSP}lbf
-STR_UNITS_FORCE_METRIC                                          :{COMMA}{NBSP}kgf
-STR_UNITS_FORCE_SI                                              :{COMMA}{NBSP}kN
-
-STR_UNITS_HEIGHT_IMPERIAL                                       :{COMMA}{NBSP}tr
-STR_UNITS_HEIGHT_METRIC                                         :{COMMA}{NBSP}m
-STR_UNITS_HEIGHT_SI                                             :{COMMA}{NBSP}m
+STR_UNITS_POWER_IMPERIAL                                        :{DECIMAL}hp
+STR_UNITS_POWER_METRIC                                          :{DECIMAL}hp
+STR_UNITS_POWER_SI                                              :{DECIMAL}{NBSP}kW
+
+
+STR_UNITS_WEIGHT_SHORT_IMPERIAL                                 :{DECIMAL}{NBSP}t
+STR_UNITS_WEIGHT_SHORT_METRIC                                   :{DECIMAL}t
+STR_UNITS_WEIGHT_SHORT_SI                                       :{DECIMAL}kg
+
+STR_UNITS_WEIGHT_LONG_IMPERIAL                                  :{DECIMAL}{NBSP}tona
+STR_UNITS_WEIGHT_LONG_METRIC                                    :{DECIMAL}{NBSP}{P "th" "th" "th" "dt" "t"}ona
+STR_UNITS_WEIGHT_LONG_SI                                        :{DECIMAL}{NBSP}kg
+
+STR_UNITS_VOLUME_SHORT_IMPERIAL                                 :{DECIMAL}{NBSP}gal
+STR_UNITS_VOLUME_SHORT_METRIC                                   :{DECIMAL}{NBSP}l
+STR_UNITS_VOLUME_SHORT_SI                                       :{DECIMAL}{NBSP}m³
+
+STR_UNITS_VOLUME_LONG_IMPERIAL                                  :{DECIMAL}{NBSP}galún
+STR_UNITS_VOLUME_LONG_METRIC                                    :{DECIMAL}{NBSP}lítear
+STR_UNITS_VOLUME_LONG_SI                                        :{DECIMAL}{NBSP}m³
+
+STR_UNITS_FORCE_IMPERIAL                                        :{DECIMAL}{NBSP}lbf
+STR_UNITS_FORCE_METRIC                                          :{DECIMAL}{NBSP}kgf
+STR_UNITS_FORCE_SI                                              :{DECIMAL}{NBSP}kN
+
+STR_UNITS_HEIGHT_IMPERIAL                                       :{DECIMAL}{NBSP}tr
+STR_UNITS_HEIGHT_METRIC                                         :{DECIMAL}{NBSP}m
+STR_UNITS_HEIGHT_SI                                             :{DECIMAL}{NBSP}m
 
 # Common window strings
 STR_LIST_FILTER_TITLE                                           :{BLACK}Teaghrán scagtha: