diff --git a/config/nim.cfg b/config/nim.cfg
index 930b5b17bc..b5bcc40530 100644
--- a/config/nim.cfg
+++ b/config/nim.cfg
@@ -195,7 +195,7 @@ vcc.options.always = "/nologo"
 vcc.options.linker = "/nologo /DEBUG /Zi /F33554432" # set the stack size to 8 MB
 @end
 
-vcc.options.debug = "/Zi /Od"
+vcc.options.debug = "/Zi /FS /Od"
 vcc.options.speed = "/O2"
 vcc.options.size = "/O1"