diff --git a/include/internal/catch_tostring.cpp b/include/internal/catch_tostring.cpp
index 7599c053..f3b9267c 100644
--- a/include/internal/catch_tostring.cpp
+++ b/include/internal/catch_tostring.cpp
@@ -10,6 +10,8 @@
 #include "catch_interfaces_config.h"
 #include "catch_context.h"
 
+#include <iomanip>
+
 namespace Catch {
 
 namespace Detail {
diff --git a/include/internal/catch_tostring.h b/include/internal/catch_tostring.h
index 23bfa0f2..e4cded72 100644
--- a/include/internal/catch_tostring.h
+++ b/include/internal/catch_tostring.h
@@ -11,8 +11,6 @@
 #include "catch_common.h"
 
 #include <sstream>
-#include <iomanip>
-#include <limits>
 #include <vector>
 #include <cstddef>