diff --git a/include/fmt/chrono.h b/include/fmt/chrono.h
index e70b8053..4159b6f4 100644
--- a/include/fmt/chrono.h
+++ b/include/fmt/chrono.h
@@ -8,7 +8,9 @@
 #ifndef FMT_CHRONO_H_
 #define FMT_CHRONO_H_
 
+#include <algorithm>
 #include <chrono>
+#include <cmath>
 #include <ctime>
 #include <locale>
 #include <sstream>
diff --git a/include/fmt/format.h b/include/fmt/format.h
index fe46193f..924e3700 100644
--- a/include/fmt/format.h
+++ b/include/fmt/format.h
@@ -37,6 +37,7 @@
 #include <cerrno>
 #include <cmath>
 #include <cstdint>
+#include <cstring>
 #include <limits>
 #include <memory>
 #include <stdexcept>
diff --git a/include/fmt/printf.h b/include/fmt/printf.h
index 8c28ac23..e2203812 100644
--- a/include/fmt/printf.h
+++ b/include/fmt/printf.h
@@ -9,7 +9,9 @@
 #define FMT_PRINTF_H_
 
 #include <algorithm>  // std::max
+#include <cstdint>
 #include <limits>     // std::numeric_limits
+#include <string>
 
 #include "ostream.h"