diff --git a/code/_byond_version_compat.dm b/code/_byond_version_compat.dm
index df2f02d383b1..719d85654b5f 100644
--- a/code/_byond_version_compat.dm
+++ b/code/_byond_version_compat.dm
@@ -65,3 +65,15 @@
 #define GLOBAL_PROC_REF(X) (/proc/##X)
 
 #endif
+
+#if (DM_VERSION == 515)
+/// fcopy will crash on 515 linux if given a non-existant file, instead of returning 0 like on 514 linux or 515 windows
+/// var case matches documentation for fcopy.
+/world/proc/__fcopy(Src, Dst)
+	if (istext(Src) && !fexists(Src))
+		return 0
+	return fcopy(Src, Dst)
+
+#define fcopy(Src, Dst) world.__fcopy(Src, Dst)
+
+#endif