diff --git a/src/log.zig b/src/log.zig
index 8759a44..58d862d 100644
--- a/src/log.zig
+++ b/src/log.zig
@@ -25,6 +25,7 @@ pub fn setLevel(level: Level) void {
 pub fn deinit() void {
     if (writer) |w| {
         w.context.close();
+        writer = null;
     }
 }