diff --git a/toonz/sources/translations/chinese/tnztools.ts b/toonz/sources/translations/chinese/tnztools.ts
index 6bb24b8..fd11c50 100644
--- a/toonz/sources/translations/chinese/tnztools.ts
+++ b/toonz/sources/translations/chinese/tnztools.ts
@@ -138,6 +138,10 @@
         <source>Pressure</source>
         <translation>压感</translation>
     </message>
+    <message>
+        <source>Smooth:</source>
+        <translation>平滑：</translation>
+    </message>
 </context>
 <context>
     <name>BrushToolOptionsBox</name>
diff --git a/toonz/sources/translations/japanese/tnztools.ts b/toonz/sources/translations/japanese/tnztools.ts
index 87b6403..4b363c3 100644
--- a/toonz/sources/translations/japanese/tnztools.ts
+++ b/toonz/sources/translations/japanese/tnztools.ts
@@ -138,6 +138,10 @@
         <source>Pressure</source>
         <translation>圧力感知</translation>
     </message>
+    <message>
+        <source>Smooth:</source>
+        <translation>補正：</translation>
+    </message>
 </context>
 <context>
     <name>BrushToolOptionsBox</name>