diff --git a/adb/client/incremental_server.cpp b/adb/client/incremental_server.cpp
index 1a1361c6d..bfe18c0b2 100644
--- a/adb/client/incremental_server.cpp
+++ b/adb/client/incremental_server.cpp
@@ -264,7 +264,7 @@ class IncrementalServer {
     char* pendingBlocks_ = nullptr;
 
     // True when client notifies that all the data has been received
-    bool servingComplete_;
+    bool servingComplete_ = false;
 };
 
 bool IncrementalServer::SkipToRequest(void* buffer, size_t* size, bool blocking) {