diff --git a/po/pt_BR.po b/po/pt_BR.po
index 7ee24515b8..daa6c357ac 100644
--- a/po/pt_BR.po
+++ b/po/pt_BR.po
@@ -1814,7 +1814,7 @@ msgstr ""
 
 #: js/messages.php:275
 msgid "Use mousewheel to zoom in or out of the plot."
-msgstr ""
+msgstr "Use a roda do mouse para ampliar ou reduzir"
 
 #: js/messages.php:277
 msgid "Click and drag the mouse to navigate the plot."