diff --git a/source/utility/pattern_scan.cpp b/source/utility/pattern_scan.cpp
index d46ffa9..8e37c90 100644
--- a/source/utility/pattern_scan.cpp
+++ b/source/utility/pattern_scan.cpp
@@ -3,7 +3,7 @@
 //
 #include "omath/utility/pattern_scan.hpp"
 #include <charconv>
-
+#include <cstdint>
 namespace omath
 {