diff --git a/src/subhook.nim b/src/subhook.nim
index 801ed1c..5c04a0d 100644
--- a/src/subhook.nim
+++ b/src/subhook.nim
@@ -1,5 +1,4 @@
 {.compile: "private/subhook/subhook.c".}
-{.passL: "-DSUBHOOK_STATIC".}
 
 {.pragma: subhook,
   cdecl,
diff --git a/src/subhook.nims b/src/subhook.nims
new file mode 100644
index 0000000..8b93521
--- /dev/null
+++ b/src/subhook.nims
@@ -0,0 +1,5 @@
+
+#when defined(windows):
+#  switch("passC", "-DSUBHOOK_WINDOWS")
+
+switch("passC", "-DSUBHOOK_STATIC")