diff --git a/apps/essimporter/converter.hpp b/apps/essimporter/converter.hpp
index 8b71775759..ac891e78df 100644
--- a/apps/essimporter/converter.hpp
+++ b/apps/essimporter/converter.hpp
@@ -2,6 +2,7 @@
 #define OPENMW_ESSIMPORT_CONVERTER_H
 
 #include <limits>
+#include <sstream>
 
 #include <osg/Image>
 #include <osg/ref_ptr>
diff --git a/apps/opencs/model/doc/savingstages.cpp b/apps/opencs/model/doc/savingstages.cpp
index 08bd6c81e8..df3d0cb980 100644
--- a/apps/opencs/model/doc/savingstages.cpp
+++ b/apps/opencs/model/doc/savingstages.cpp
@@ -1,5 +1,7 @@
 #include "savingstages.hpp"
 
+#include <sstream>
+
 #include <boost/filesystem.hpp>
 
 #include <components/esm3/loaddial.hpp>
diff --git a/apps/opencs/model/world/regionmap.cpp b/apps/opencs/model/world/regionmap.cpp
index 6dbbac97fb..557a8303b5 100644
--- a/apps/opencs/model/world/regionmap.cpp
+++ b/apps/opencs/model/world/regionmap.cpp
@@ -2,6 +2,7 @@
 
 #include <cmath>
 #include <algorithm>
+#include <sstream>
 
 #include <QBrush>
 
diff --git a/apps/opencs/view/filter/editwidget.cpp b/apps/opencs/view/filter/editwidget.cpp
index 2c2f4443df..78dfef704b 100644
--- a/apps/opencs/view/filter/editwidget.cpp
+++ b/apps/opencs/view/filter/editwidget.cpp
@@ -1,5 +1,7 @@
 #include "editwidget.hpp"
 
+#include <sstream>
+
 #include <QAbstractItemModel>
 #include <QAction>
 #include <QContextMenuEvent>
diff --git a/apps/openmw/mwworld/store.cpp b/apps/openmw/mwworld/store.cpp
index 80cf3b87a1..ba33703668 100644
--- a/apps/openmw/mwworld/store.cpp
+++ b/apps/openmw/mwworld/store.cpp
@@ -10,6 +10,7 @@
 
 #include <iterator>
 #include <stdexcept>
+#include <sstream>
 
 namespace MWWorld
 {
diff --git a/components/esm3/esmreader.cpp b/components/esm3/esmreader.cpp
index abe6cf9d71..2a3ee69464 100644
--- a/components/esm3/esmreader.cpp
+++ b/components/esm3/esmreader.cpp
@@ -4,6 +4,7 @@
 #include <components/misc/stringops.hpp>
 
 #include <stdexcept>
+#include <sstream>
 
 namespace ESM
 {
diff --git a/components/esm3/esmreader.hpp b/components/esm3/esmreader.hpp
index 85e3f8a59a..a91a1f1978 100644
--- a/components/esm3/esmreader.hpp
+++ b/components/esm3/esmreader.hpp
@@ -3,7 +3,6 @@
 
 #include <cstdint>
 #include <vector>
-#include <sstream>
 
 #include <components/files/constrainedfilestream.hpp>
 
diff --git a/components/esm3/loadscpt.cpp b/components/esm3/loadscpt.cpp
index f226d5f3be..b97a148963 100644
--- a/components/esm3/loadscpt.cpp
+++ b/components/esm3/loadscpt.cpp
@@ -1,5 +1,7 @@
 #include "loadscpt.hpp"
 
+#include <sstream>
+
 #include <components/debug/debuglog.hpp>
 
 #include "esmreader.hpp"
diff --git a/components/esm3/variantimp.cpp b/components/esm3/variantimp.cpp
index b9cd9a8536..df491e7cec 100644
--- a/components/esm3/variantimp.cpp
+++ b/components/esm3/variantimp.cpp
@@ -2,6 +2,7 @@
 
 #include <stdexcept>
 #include <cmath>
+#include <sstream>
 
 #include "esmreader.hpp"
 #include "esmwriter.hpp"
diff --git a/components/esmloader/load.cpp b/components/esmloader/load.cpp
index 14478a6c85..95011e221c 100644
--- a/components/esmloader/load.cpp
+++ b/components/esmloader/load.cpp
@@ -28,6 +28,7 @@
 #include <type_traits>
 #include <utility>
 #include <vector>
+#include <sstream>
 
 namespace EsmLoader
 {