diff --git a/radio/util/tts_de.py b/radio/util/tts_de.py
index 4563fa9ef..90959cbb5 100755
--- a/radio/util/tts_de.py
+++ b/radio/util/tts_de.py
@@ -29,7 +29,7 @@ for i, (s, f) in enumerate([(u"Volt","volt0"),
                             (u"mMilliampere pro stunde", "mamps0"),
                             (u"Watt", "watt0"),
                             (u"Milli Watt", "mwatt0"),
-                            (u"db", "db0"),
+                            (u"D B", "db0"),
                             (u"R P M", "rpm0"),
                             (u"g", "g0"),
                             (u"degree", "degree0"),
diff --git a/radio/util/tts_en.py b/radio/util/tts_en.py
index 4e46e648d..78e3611b1 100755
--- a/radio/util/tts_en.py
+++ b/radio/util/tts_en.py
@@ -30,7 +30,7 @@ for i, (s, f) in enumerate([("volt", "volt0"), ("volts", "volt1"),
                             ("milliamp-hour", "mamph0"), ("milliamp-hours", "mamph1"),
                             ("watt", "watt0"), ("watts", "watt1"),
                             ("milli-watt", "mwatt0"), ("milli-watts", "mwatt1"),
-                            ("db", "db0"),
+                            ("D B", "db0"),
                             ("r p m", "rpm0"),
                             ("g", "g0"),
                             ("degree", "degree0"), ("degrees", "degree1"),
diff --git a/radio/util/tts_es.py b/radio/util/tts_es.py
index d65621745..8fdcc67f0 100755
--- a/radio/util/tts_es.py
+++ b/radio/util/tts_es.py
@@ -38,8 +38,8 @@ for i, (s, f) in enumerate([(u"Voltio","volt0"),
                             (u"miliamperios por hora", "mamph0"),
                             (u"vatio", "watt0"),
                             (u"millivatio", "mwatt0"),
-                            (u"db", "db0"),
-                            (u"RPM", "rpm0"),
+                            (u"D B", "db0"),
+                            (u"R P M", "rpm0"),
                             (u"g", "g0"),
                             (u"grados", "degree0"),
                             (u"radianes ", "rad0"),
diff --git a/radio/util/tts_fr.py b/radio/util/tts_fr.py
index 4a83673b5..592fb0855 100755
--- a/radio/util/tts_fr.py
+++ b/radio/util/tts_fr.py
@@ -31,7 +31,7 @@ for i, (s, f) in enumerate([(u"volts","volt0"),
                             (u"milli ampères heure", "mamph0"),
                             (u"watt", "watt0"),
                             (u"milli watt", "mwatt0"),
-                            (u"db", "db0"),
+                            (u"d b", "db0"),
                             (u"tours minute", "rpm0"),
                             (u"g", "g0"),
                             (u"degrés", "degree0"),
diff --git a/radio/util/tts_it.py b/radio/util/tts_it.py
index 8628629ef..23f0a0482 100755
--- a/radio/util/tts_it.py
+++ b/radio/util/tts_it.py
@@ -30,7 +30,7 @@ for i, (s, f) in enumerate([(u"volt", "volt0"),
                             (u"milliampere ora", "mamph0"),
                             (u"watt", "watt0"),
                             (u"milli-watt", "mwatt0"), ("milli-watts", "mwatt1"),
-                            (u"db", "db0"),
+                            (u"d b", "db0"),
                             (u"r p m", "rpm0"),
                             (u"g", "g0"),
                             (u"grado", "degree0"), ("gradi", "degree1"),