diff --git a/src/libs/subsonic/impl/SubsonicResource.cpp b/src/libs/subsonic/impl/SubsonicResource.cpp
index ed7c87ce..11391e36 100644
--- a/src/libs/subsonic/impl/SubsonicResource.cpp
+++ b/src/libs/subsonic/impl/SubsonicResource.cpp
@@ -19,6 +19,7 @@
 #include "subsonic/SubsonicResource.hpp"
 
 #include <atomic>
+#include <unordered_map>
 
 #include <Wt/WLocalDateTime.h>
 
diff --git a/src/libs/utils/impl/String.cpp b/src/libs/utils/impl/String.cpp
index 1b181325..dbcb82d2 100644
--- a/src/libs/utils/impl/String.cpp
+++ b/src/libs/utils/impl/String.cpp
@@ -20,6 +20,7 @@
 #include "utils/String.hpp"
 
 #include <iomanip>
+#include <unordered_map>
 
 #include <boost/algorithm/string/split.hpp>
 #include <boost/algorithm/string/join.hpp>