diff --git a/frontend/src/locale/messages.pl.xlf b/frontend/src/locale/messages.pl.xlf
index 51a8f49b6..e7281c9a7 100644
--- a/frontend/src/locale/messages.pl.xlf
+++ b/frontend/src/locale/messages.pl.xlf
@@ -1458,7 +1458,7 @@
       </trans-unit>
       <trans-unit id="2c2a527d090d5d030fc130a243135dbc6ba276f0" datatype="html">
         <source>Accelerated by</source>
-        <target>Przyspieszona o</target>
+        <target>Przyspieszona przez</target>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/acceleration-timeline/acceleration-timeline-tooltip.component.html</context>
           <context context-type="linenumber">48</context>