diff --git a/htdocs/langs/en_US/other.lang b/htdocs/langs/en_US/other.lang
index 2e768cd1cc6..b900eb295a6 100644
--- a/htdocs/langs/en_US/other.lang
+++ b/htdocs/langs/en_US/other.lang
@@ -64,9 +64,9 @@ WeightUnitkg=kg
 WeightUnitg=g
 WeightUnitmg=mg
 Volume=Volume
-VolumeUnitm3=m3
-VolumeUnitcm3=cm3
-VolumeUnitmm3=mm3
+VolumeUnitm3=m<SUP>3</SUP>
+VolumeUnitcm3=cm<SUP>3</SUP>
+VolumeUnitmm3=mm<SUP>3</SUP>
 BugTracker=Bug tracker
 ##### Webcal #####
 LoginWebcal=Login for Webcalendar
diff --git a/htdocs/langs/fr_FR/other.lang b/htdocs/langs/fr_FR/other.lang
index e9043fc9690..f66c58eec8e 100644
--- a/htdocs/langs/fr_FR/other.lang
+++ b/htdocs/langs/fr_FR/other.lang
@@ -64,9 +64,9 @@ WeightUnitkg=kg
 WeightUnitg=g
 WeightUnitmg=mg
 Volume=Volume
-VolumeUnitm3=m3
-VolumeUnitcm3=cm3
-VolumeUnitmm3=mm3
+VolumeUnitm3=m<SUP>3</SUP>
+VolumeUnitcm3=cm<SUP>3</SUP>
+VolumeUnitmm3=mm<SUP>3</SUP>
 BugTracker=Bug tracker
 ##### Webcal #####
 LoginWebcal=Login Webcalendar