diff --git a/src/networkd.c b/src/networkd.c
index 93d800d..f7184be 100644
--- a/src/networkd.c
+++ b/src/networkd.c
@@ -254,7 +254,7 @@ write_route(ip_route* r, GString* s)
                            r->to, r->via);
 
     if (r->from)
-        g_string_append_printf(s, "From=%s\n", r->from);
+        g_string_append_printf(s, "Source=%s\n", r->from);
 
     if (r->scope)
         g_string_append_printf(s, "Scope=%s\n", r->scope);