diff --git a/src/dodb/lib_c.cr b/src/dodb/lib_c.cr
deleted file mode 100644
index 5a32b78..0000000
--- a/src/dodb/lib_c.cr
+++ /dev/null
@@ -1,9 +0,0 @@
-
-lib LibC
-	{% if flag?(:linux) %}
-		O_EXCL = 0o200
-	{% elsif flag?(:openbsd) %}
-		O_EXCL = 0x0800
-	{% end %}
-end
-