diff --git a/branding/templates/windows/template.nsi b/branding/templates/windows/template.nsi
index 1f7715a189f99396c77014eec8dd068367e7558d..2be707b0efae6f965ed06c86b70165ab911405dc 100755
--- a/branding/templates/windows/template.nsi
+++ b/branding/templates/windows/template.nsi
@@ -87,7 +87,7 @@ SectionEnd
 
 Section "InstallService"
   ; Easy service management thanks to nssm
-  ExecWait '"$INSTDIR\nssm.exe" install $applicationNameLower-helper "$INSTDIR\bitmask-helper.exe"'
+  ExecWait '"$INSTDIR\nssm.exe" install $applicationNameLower-helper "$INSTDIR\bitmask_helper.exe"'
   ExecWait '"$INSTDIR\nssm.exe" set $applicationNameLower-helper AppDirectory "$INSTDIR"'
   ExecWait '"$INSTDIR\nssm.exe" start $applicationNameLower-helper'
 SectionEnd