diff --git a/src/streamrestore.cpp b/src/streamrestore.cpp
--- a/src/streamrestore.cpp
+++ b/src/streamrestore.cpp
@@ -29,6 +29,9 @@
     : PulseObject(parent)
     , m_muted(false)
 {
+    memset(&m_volume, 0, sizeof(m_volume));
+    memset(&m_channelMap, 0, sizeof(m_channelMap));
+
     m_index = index;
     m_properties = properties;
 }