diff --git a/config/nim.cfg b/config/nim.cfg
index 0390ea9143..c054deeb3b 100644
--- a/config/nim.cfg
+++ b/config/nim.cfg
@@ -180,21 +180,24 @@ clang.options.size = "-Os"
 vcc.exe = "vccexe.exe"
 vcc.linkerexe = "vccexe.exe"
 
-# Here we need to set the options for specific platforms:
-# amd64.windows.vcc.options = "/vcvars:platform:amd64"
-# i386.windows.vcc.options = "/vcvars:platform:x86"
-# arm.windows.vcc.options = "/vcvars:platform:arm"
-
-vcc.options.linker = "/nologo /DEBUG /Zi /Fd\"$projectName.pdb\" /F33554432" # set the stack size to 8 MB
-vcc.options.debug = "/Zi /Fd\"$projectName.pdb\""
-vcc.options.always = "/nologo"
-@if defined(i386):
-vcc.options.speed = "/O2 /arch:SSE2"
-@elif defined(amd64):
-vcc.options.speed = "/O2 /arch:AVX"
+# set the options for specific platforms:
+@if i386:
+vcc.options.always = "/nologo /vcvars:platform:x86"
+vcc.options.linker.always = "/nologo /vcvars:platform:x86"
+@elif amd64:
+vcc.options.always = "/nologo /vcvars:platform:amd64"
+vcc.options.linker.always = "/nologo /vcvars:platform:amd64"
+@elif arm:
+vcc.options.always = "/nologo /vcvars:platform:arm"
+vcc.options.linker.always = "/nologo /vcvars:platform:arm"
 @else:
-vcc.options.speed = "/O2"
+vcc.options.always = "/nologo"
+vcc.options.linker.always = "/nologo"
 @end
+
+vcc.options.linker = "/DEBUG /Zi /Fd\"$projectName.pdb\" /F33554432" # set the stack size to 8 MB
+vcc.options.debug = "/Zi /Fd\"$projectName.pdb\""
+vcc.options.speed = "/O2"
 vcc.options.size = "/O1"
 
 # Configuration for the Tiny C Compiler: