diff --git a/scripts/win32/installer.nsi b/scripts/win32/installer.nsi
index 69f807e3..386034c7 100644
--- a/scripts/win32/installer.nsi
+++ b/scripts/win32/installer.nsi
@@ -110,7 +110,7 @@ Section "Open STL files with Cura"
 	WriteRegStr HKCR .stl "" "STL file"
 	;WriteRegStr HKCR "STL file\DefaultIcon" "" "$INSTDIR\stl.ico,0"
 	WriteRegStr HKCR "STL file\shell" "" "open"
-	WriteRegStr HKCR "STL file\shell\open\command" "" '"$INSTDIR\cura.bat" "%1"'
+	WriteRegStr HKCR "STL file\shell\open\command" "" '"$INSTDIR\python\python.exe" "$INSTDIR\Cura\cura.py" "%1"'
 SectionEnd
 
 ;--------------------------------