diff --git a/NEWS b/NEWS
index 670cb3256..1a56cee5b 100644
--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,8 @@
 ver 0.20.19 (not yet released)
 * protocol
   - validate absolute seek time, reject negative values
+* input
+  - mms: fix lockup bug
 * macOS: fix crash bug
 
 ver 0.20.18 (2018/02/24)
diff --git a/src/input/ThreadInputStream.cxx b/src/input/ThreadInputStream.cxx
index 88251a70a..a5e5e17d5 100644
--- a/src/input/ThreadInputStream.cxx
+++ b/src/input/ThreadInputStream.cxx
@@ -68,7 +68,7 @@ ThreadInputStream::ThreadFunc()
 		Open();
 	} catch (...) {
 		postponed_exception = std::current_exception();
-		cond.broadcast();
+		SetReady();
 		return;
 	}