diff --git a/src/lang/bulgarian.txt b/src/lang/bulgarian.txt
--- a/src/lang/bulgarian.txt
+++ b/src/lang/bulgarian.txt
@@ -192,38 +192,38 @@ STR_COLOUR_GREY                                                 :Сиво
 STR_COLOUR_WHITE                                                :Бяло
 
 # Units used in OpenTTD
-STR_UNITS_VELOCITY_IMPERIAL                                     :{COMMA} мил{P я и}/ч
-STR_UNITS_VELOCITY_METRIC                                       :{COMMA} км/ч
-STR_UNITS_VELOCITY_SI                                           :{COMMA} м/с
-
-STR_UNITS_POWER_IMPERIAL                                        :{COMMA} к.с.
-STR_UNITS_POWER_METRIC                                          :{COMMA} к.с.
-STR_UNITS_POWER_SI                                              :{COMMA} kW
-
-
-STR_UNITS_WEIGHT_SHORT_IMPERIAL                                 :{COMMA}т
-STR_UNITS_WEIGHT_SHORT_METRIC                                   :{COMMA} т.
-STR_UNITS_WEIGHT_SHORT_SI                                       :{COMMA} кг.
-
-STR_UNITS_WEIGHT_LONG_IMPERIAL                                  :{COMMA} тон{P "" а}
-STR_UNITS_WEIGHT_LONG_METRIC                                    :{COMMA} тон{P "" а}
-STR_UNITS_WEIGHT_LONG_SI                                        :{COMMA} кг
-
-STR_UNITS_VOLUME_SHORT_IMPERIAL                                 :{COMMA}гал
-STR_UNITS_VOLUME_SHORT_METRIC                                   :{COMMA} л.
-STR_UNITS_VOLUME_SHORT_SI                                       :{COMMA}{NBSP}м³
-
-STR_UNITS_VOLUME_LONG_IMPERIAL                                  :{COMMA}{NBSP}галон{P "" и}
-STR_UNITS_VOLUME_LONG_METRIC                                    :{COMMA}{NBSP}лит{P ър ри}
-STR_UNITS_VOLUME_LONG_SI                                        :{COMMA}{NBSP}куб. м.
-
-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}фут
-STR_UNITS_HEIGHT_METRIC                                         :{COMMA}{NBSP}м
-STR_UNITS_HEIGHT_SI                                             :{COMMA}{NBSP}м
+STR_UNITS_VELOCITY_IMPERIAL                                     :{DECIMAL} мил{P я и}/ч
+STR_UNITS_VELOCITY_METRIC                                       :{DECIMAL} км/ч
+STR_UNITS_VELOCITY_SI                                           :{DECIMAL} м/с
+
+STR_UNITS_POWER_IMPERIAL                                        :{DECIMAL} к.с.
+STR_UNITS_POWER_METRIC                                          :{DECIMAL} к.с.
+STR_UNITS_POWER_SI                                              :{DECIMAL} kW
+
+
+STR_UNITS_WEIGHT_SHORT_IMPERIAL                                 :{DECIMAL}т
+STR_UNITS_WEIGHT_SHORT_METRIC                                   :{DECIMAL} т.
+STR_UNITS_WEIGHT_SHORT_SI                                       :{DECIMAL} кг.
+
+STR_UNITS_WEIGHT_LONG_IMPERIAL                                  :{DECIMAL} тон{P "" а}
+STR_UNITS_WEIGHT_LONG_METRIC                                    :{DECIMAL} тон{P "" а}
+STR_UNITS_WEIGHT_LONG_SI                                        :{DECIMAL} кг
+
+STR_UNITS_VOLUME_SHORT_IMPERIAL                                 :{DECIMAL}гал
+STR_UNITS_VOLUME_SHORT_METRIC                                   :{DECIMAL} л.
+STR_UNITS_VOLUME_SHORT_SI                                       :{DECIMAL}{NBSP}м³
+
+STR_UNITS_VOLUME_LONG_IMPERIAL                                  :{DECIMAL}{NBSP}галон{P "" и}
+STR_UNITS_VOLUME_LONG_METRIC                                    :{DECIMAL}{NBSP}лит{P ър ри}
+STR_UNITS_VOLUME_LONG_SI                                        :{DECIMAL}{NBSP}куб. м.
+
+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}фут
+STR_UNITS_HEIGHT_METRIC                                         :{DECIMAL}{NBSP}м
+STR_UNITS_HEIGHT_SI                                             :{DECIMAL}{NBSP}м
 
 # Common window strings
 STR_LIST_FILTER_TITLE                                           :{BLACK}Филтриращ низ: