diff --git a/src/fuse_getattr.cpp b/src/fuse_getattr.cpp
index 88663775..ed49618b 100644
--- a/src/fuse_getattr.cpp
+++ b/src/fuse_getattr.cpp
@@ -26,6 +26,7 @@
 #include "fuse.h"
 
 #include <string>
+#include <unordered_map>
 
 using std::string;