diff --git a/src/core/ev.c b/src/core/ev.c
index 913fe734..7422e562 100644
--- a/src/core/ev.c
+++ b/src/core/ev.c
@@ -451,6 +451,7 @@ static void *janet_stream_unmarshal(JanetMarshalContext *ctx) {
 #else
     p->handle = (JanetHandle) janet_unmarshal_int(ctx);
 #endif
+    janet_register_stream(p);
     return p;
 }