diff --git a/src/cmake.cpp b/src/cmake.cpp
index 177ec81..7b37e50 100644
--- a/src/cmake.cpp
+++ b/src/cmake.cpp
@@ -7,6 +7,7 @@
 #include "utility.hpp"
 #include <boost/algorithm/string.hpp>
 #include <boost/optional.hpp>
+#include <fstream>
 #include <future>
 #include <regex>
 
diff --git a/src/meson.cpp b/src/meson.cpp
index 33ac0da..91f75b1 100644
--- a/src/meson.cpp
+++ b/src/meson.cpp
@@ -7,6 +7,7 @@
 #include "terminal.hpp"
 #include "utility.hpp"
 #include <boost/optional.hpp>
+#include <fstream>
 #include <future>
 #include <regex>
 
diff --git a/src/project_build.cpp b/src/project_build.cpp
index 5d37f2e..1189ed9 100644
--- a/src/project_build.cpp
+++ b/src/project_build.cpp
@@ -4,6 +4,7 @@
 #include "json.hpp"
 #include "terminal.hpp"
 #include <boost/algorithm/string.hpp>
+#include <fstream>
 #include <regex>
 
 std::unique_ptr<Project::Build> Project::Build::create(const boost::filesystem::path &path) {