diff --git a/src/lang/tamil.txt b/src/lang/tamil.txt
--- a/src/lang/tamil.txt
+++ b/src/lang/tamil.txt
@@ -191,40 +191,40 @@ STR_COLOUR_WHITE                                                :வெள்ளை
 STR_COLOUR_RANDOM                                               :ஏதோவொரு
 
 # Units used in OpenTTD
-STR_UNITS_VELOCITY_IMPERIAL                                     :{COMMA}{NBSP}mph
-STR_UNITS_VELOCITY_METRIC                                       :{COMMA}{NBSP}km/h
-STR_UNITS_VELOCITY_SI                                           :{COMMA}{NBSP}m/s
+STR_UNITS_VELOCITY_IMPERIAL                                     :{DECIMAL}{NBSP}mph
+STR_UNITS_VELOCITY_METRIC                                       :{DECIMAL}{NBSP}km/h
+STR_UNITS_VELOCITY_SI                                           :{DECIMAL}{NBSP}m/s
 STR_UNITS_VELOCITY_GAMEUNITS                                    :{DECIMAL}{NBSP}வட்டங்கள்/நாளிற்கு
 
-STR_UNITS_POWER_IMPERIAL                                        :{COMMA}{NBSP}hp
-STR_UNITS_POWER_METRIC                                          :{COMMA}{NBSP}hp
-STR_UNITS_POWER_SI                                              :{COMMA}{NBSP}kW
+STR_UNITS_POWER_IMPERIAL                                        :{DECIMAL}{NBSP}hp
+STR_UNITS_POWER_METRIC                                          :{DECIMAL}{NBSP}hp
+STR_UNITS_POWER_SI                                              :{DECIMAL}{NBSP}kW
 
 STR_UNITS_POWER_SI_TO_WEIGHT_IMPERIAL                           :{DECIMAL}{NBSP}kW/t
 
-STR_UNITS_WEIGHT_SHORT_IMPERIAL                                 :{COMMA}{NBSP}டன்
-STR_UNITS_WEIGHT_SHORT_METRIC                                   :{COMMA}{NBSP}டன்
-STR_UNITS_WEIGHT_SHORT_SI                                       :{COMMA}{NBSP}கி.கி.
-
-STR_UNITS_WEIGHT_LONG_IMPERIAL                                  :{COMMA}{NBSP}டன்{P "" கள்}
-STR_UNITS_WEIGHT_LONG_METRIC                                    :{COMMA}{NBSP}டன்{P "" கள்}
-STR_UNITS_WEIGHT_LONG_SI                                        :{COMMA}{NBSP}கி.கி.
-
-STR_UNITS_VOLUME_SHORT_IMPERIAL                                 :{COMMA}{NBSP}கேலன்
-STR_UNITS_VOLUME_SHORT_METRIC                                   :{COMMA}{NBSP}லி
-STR_UNITS_VOLUME_SHORT_SI                                       :{COMMA}{NBSP}மீ³
-
-STR_UNITS_VOLUME_LONG_IMPERIAL                                  :{COMMA}{NBSP}கேலன்{P "" கள்}
-STR_UNITS_VOLUME_LONG_METRIC                                    :{COMMA}{NBSP}லிட்டர்{P "" கள்}
-STR_UNITS_VOLUME_LONG_SI                                        :{COMMA}{NBSP}மீ³
-
-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}அடி
-STR_UNITS_HEIGHT_METRIC                                         :{COMMA}{NBSP}மீ
-STR_UNITS_HEIGHT_SI                                             :{COMMA}{NBSP}மீ
+STR_UNITS_WEIGHT_SHORT_IMPERIAL                                 :{DECIMAL}{NBSP}டன்
+STR_UNITS_WEIGHT_SHORT_METRIC                                   :{DECIMAL}{NBSP}டன்
+STR_UNITS_WEIGHT_SHORT_SI                                       :{DECIMAL}{NBSP}கி.கி.
+
+STR_UNITS_WEIGHT_LONG_IMPERIAL                                  :{DECIMAL}{NBSP}டன்{P "" கள்}
+STR_UNITS_WEIGHT_LONG_METRIC                                    :{DECIMAL}{NBSP}டன்{P "" கள்}
+STR_UNITS_WEIGHT_LONG_SI                                        :{DECIMAL}{NBSP}கி.கி.
+
+STR_UNITS_VOLUME_SHORT_IMPERIAL                                 :{DECIMAL}{NBSP}கேலன்
+STR_UNITS_VOLUME_SHORT_METRIC                                   :{DECIMAL}{NBSP}லி
+STR_UNITS_VOLUME_SHORT_SI                                       :{DECIMAL}{NBSP}மீ³
+
+STR_UNITS_VOLUME_LONG_IMPERIAL                                  :{DECIMAL}{NBSP}கேலன்{P "" கள்}
+STR_UNITS_VOLUME_LONG_METRIC                                    :{DECIMAL}{NBSP}லிட்டர்{P "" கள்}
+STR_UNITS_VOLUME_LONG_SI                                        :{DECIMAL}{NBSP}மீ³
+
+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}அடி
+STR_UNITS_HEIGHT_METRIC                                         :{DECIMAL}{NBSP}மீ
+STR_UNITS_HEIGHT_SI                                             :{DECIMAL}{NBSP}மீ
 
 # Common window strings
 STR_LIST_FILTER_TITLE                                           :{BLACK}வடிகட்டி தொடர்: