diff --git a/src/dwarfs/block_compressor.cpp b/src/dwarfs/block_compressor.cpp
index 9cdcdb9d..c2219c5c 100644
--- a/src/dwarfs/block_compressor.cpp
+++ b/src/dwarfs/block_compressor.cpp
@@ -26,6 +26,7 @@
 #include <cstring>
 #include <iterator>
 #include <memory>
+#include <mutex>
 #include <unordered_map>
 
 #include <sys/types.h>