diff --git a/cli/cmdlineparser.cpp b/cli/cmdlineparser.cpp
index bc8e5ec77..c25ba7c80 100644
--- a/cli/cmdlineparser.cpp
+++ b/cli/cmdlineparser.cpp
@@ -40,6 +40,7 @@
 #include <iostream>
 #include <list>
 #include <set>
+#include <sstream>
 #include <utility>
 
 #ifdef HAVE_RULES
diff --git a/cli/cppcheckexecutor.cpp b/cli/cppcheckexecutor.cpp
index 5e78cc7dc..0630eb29f 100644
--- a/cli/cppcheckexecutor.cpp
+++ b/cli/cppcheckexecutor.cpp
@@ -48,6 +48,7 @@
 #include <iostream>
 #include <list>
 #include <memory>
+#include <sstream>
 #include <utility>
 #include <vector>
 
diff --git a/cli/processexecutor.cpp b/cli/processexecutor.cpp
index 4e5a904cc..1448a0bc3 100644
--- a/cli/processexecutor.cpp
+++ b/cli/processexecutor.cpp
@@ -39,6 +39,7 @@
 #include <functional>
 #include <iostream>
 #include <list>
+#include <sstream>
 #include <sys/select.h>
 #include <sys/wait.h>
 #include <unistd.h>
diff --git a/lib/checkcondition.cpp b/lib/checkcondition.cpp
index 1c88ba038..97e378cfe 100644
--- a/lib/checkcondition.cpp
+++ b/lib/checkcondition.cpp
@@ -39,6 +39,7 @@
 #include <memory>
 #include <ostream>
 #include <set>
+#include <sstream>
 #include <utility>
 #include <vector>
 
diff --git a/lib/checkfunctions.cpp b/lib/checkfunctions.cpp
index 5236bb252..d9321a7c7 100644
--- a/lib/checkfunctions.cpp
+++ b/lib/checkfunctions.cpp
@@ -32,6 +32,7 @@
 
 #include <iomanip>
 #include <ostream>
+#include <sstream>
 #include <unordered_map>
 #include <vector>
 
diff --git a/lib/checkio.cpp b/lib/checkio.cpp
index c3c347cc8..8541ef549 100644
--- a/lib/checkio.cpp
+++ b/lib/checkio.cpp
@@ -35,6 +35,7 @@
 #include <map>
 #include <memory>
 #include <set>
+#include <sstream>
 #include <unordered_set>
 #include <utility>
 #include <vector>
diff --git a/lib/checkother.cpp b/lib/checkother.cpp
index d75f33f03..e9b582e5a 100644
--- a/lib/checkother.cpp
+++ b/lib/checkother.cpp
@@ -41,6 +41,7 @@
 #include <memory>
 #include <ostream>
 #include <set>
+#include <sstream>
 #include <utility>
 #include <numeric>
 
diff --git a/lib/checktype.cpp b/lib/checktype.cpp
index 09f820881..58e3b51c6 100644
--- a/lib/checktype.cpp
+++ b/lib/checktype.cpp
@@ -32,6 +32,7 @@
 #include <cmath>
 #include <list>
 #include <ostream>
+#include <sstream>
 #include <vector>
 
 //---------------------------------------------------------------------------
diff --git a/lib/checkunusedfunctions.cpp b/lib/checkunusedfunctions.cpp
index 0c8a7a0d9..aac2de59c 100644
--- a/lib/checkunusedfunctions.cpp
+++ b/lib/checkunusedfunctions.cpp
@@ -36,7 +36,7 @@
 #include <cstring>
 #include <istream>
 #include <memory>
-
+#include <sstream>
 #include <utility>
 #include <vector>
 
diff --git a/lib/clangimport.cpp b/lib/clangimport.cpp
index a41f0ea41..5d7b54cce 100644
--- a/lib/clangimport.cpp
+++ b/lib/clangimport.cpp
@@ -37,6 +37,7 @@
 #include <map>
 #include <memory>
 #include <set>
+#include <sstream>
 #include <stack>
 #include <string>
 #include <utility>
diff --git a/lib/cppcheck.cpp b/lib/cppcheck.cpp
index 047a834f1..951acb563 100644
--- a/lib/cppcheck.cpp
+++ b/lib/cppcheck.cpp
@@ -49,6 +49,7 @@
 #include <memory>
 #include <new>
 #include <set>
+#include <sstream>
 #include <stdexcept>
 #include <string>
 #include <utility>
diff --git a/lib/ctu.cpp b/lib/ctu.cpp
index b5e82f157..61c2cf716 100644
--- a/lib/ctu.cpp
+++ b/lib/ctu.cpp
@@ -34,6 +34,7 @@
 #include <cstring>
 #include <iterator>  // back_inserter
 #include <ostream>
+#include <sstream>
 #include <utility>
 
 #include <tinyxml2.h>
diff --git a/lib/errorlogger.cpp b/lib/errorlogger.cpp
index b16f21a9b..16a487448 100644
--- a/lib/errorlogger.cpp
+++ b/lib/errorlogger.cpp
@@ -33,6 +33,7 @@
 #include <cstring>
 #include <iomanip>
 #include <memory>
+#include <sstream>
 #include <string>
 #include <utility>
 
diff --git a/lib/importproject.cpp b/lib/importproject.cpp
index 424f65e6f..c403b2e42 100644
--- a/lib/importproject.cpp
+++ b/lib/importproject.cpp
@@ -32,7 +32,7 @@
 #include <fstream> // IWYU pragma: keep
 #include <iostream>
 #include <iterator>
-
+#include <sstream>
 #include <utility>
 
 #include <tinyxml2.h>
diff --git a/lib/library.cpp b/lib/library.cpp
index 01f2c43ad..ba656b6ac 100644
--- a/lib/library.cpp
+++ b/lib/library.cpp
@@ -34,6 +34,7 @@
 #include <iosfwd>
 #include <list>
 #include <memory>
+#include <sstream>
 #include <stack>
 #include <string>
 
diff --git a/lib/mathlib.cpp b/lib/mathlib.cpp
index bf6c5fb83..607d2a0e2 100644
--- a/lib/mathlib.cpp
+++ b/lib/mathlib.cpp
@@ -27,6 +27,7 @@
 #include <exception>
 #include <limits>
 #include <locale>
+#include <sstream>
 #include <stdexcept>
 
 #include <simplecpp.h>
diff --git a/lib/preprocessor.cpp b/lib/preprocessor.cpp
index bc03cc107..6c4d8ec98 100644
--- a/lib/preprocessor.cpp
+++ b/lib/preprocessor.cpp
@@ -31,6 +31,7 @@
 #include <cstddef>
 #include <iterator> // back_inserter
 #include <memory>
+#include <sstream>
 #include <utility>
 
 #include <simplecpp.h>
diff --git a/lib/summaries.cpp b/lib/summaries.cpp
index 034af16a6..b793908d8 100644
--- a/lib/summaries.cpp
+++ b/lib/summaries.cpp
@@ -28,6 +28,7 @@
 #include <algorithm>
 #include <fstream>
 #include <map>
+#include <sstream>
 #include <vector>
 
 
diff --git a/lib/suppressions.cpp b/lib/suppressions.cpp
index 26cdc16fc..69d110346 100644
--- a/lib/suppressions.cpp
+++ b/lib/suppressions.cpp
@@ -31,6 +31,7 @@
 #include <cstdlib>
 #include <cstring>
 #include <functional> // std::bind, std::placeholders
+#include <sstream>
 
 #include <tinyxml2.h>
 
diff --git a/lib/symboldatabase.cpp b/lib/symboldatabase.cpp
index 11a04d087..f3c6d3f96 100644
--- a/lib/symboldatabase.cpp
+++ b/lib/symboldatabase.cpp
@@ -41,6 +41,7 @@
 #include <iomanip>
 #include <iostream>
 #include <limits>
+#include <sstream>
 #include <stack>
 #include <string>
 #include <type_traits>
diff --git a/lib/templatesimplifier.cpp b/lib/templatesimplifier.cpp
index 9d1e0c073..a9e5ec5d6 100644
--- a/lib/templatesimplifier.cpp
+++ b/lib/templatesimplifier.cpp
@@ -32,6 +32,7 @@
 #include <iostream>
 #include <map>
 #include <memory>
+#include <sstream>
 #include <stack>
 #include <utility>
 
diff --git a/lib/token.cpp b/lib/token.cpp
index e044fea5e..63875adb5 100644
--- a/lib/token.cpp
+++ b/lib/token.cpp
@@ -40,6 +40,7 @@
 #include <iterator>
 #include <map>
 #include <set>
+#include <sstream>
 #include <stack>
 #include <unordered_set>
 #include <utility>
diff --git a/lib/tokenize.cpp b/lib/tokenize.cpp
index 535afc48f..634a7c597 100644
--- a/lib/tokenize.cpp
+++ b/lib/tokenize.cpp
@@ -44,6 +44,7 @@
 #include <exception>
 #include <memory>
 #include <set>
+#include <sstream>
 #include <stack>
 #include <stdexcept>
 #include <type_traits>
diff --git a/lib/valueflow.cpp b/lib/valueflow.cpp
index dbed0639f..6cf0f4f41 100644
--- a/lib/valueflow.cpp
+++ b/lib/valueflow.cpp
@@ -117,6 +117,7 @@
 #include <map>
 #include <memory>
 #include <set>
+#include <sstream>
 #include <string>
 #include <type_traits>
 #include <unordered_map>