diff --git a/include/internal/catch_test_case_tracker.hpp b/include/internal/catch_test_case_tracker.hpp
index d2b14a2e..cda64291 100644
--- a/include/internal/catch_test_case_tracker.hpp
+++ b/include/internal/catch_test_case_tracker.hpp
@@ -15,6 +15,7 @@
 #include <string>
 #include <assert.h>
 #include <vector>
+#include <iterator>
 
 namespace Catch {
 namespace TestCaseTracking {