diff --git a/src/lib/server/InputFilter.cpp b/src/lib/server/InputFilter.cpp
index 1234567..abcdefg 100644
--- a/src/lib/server/InputFilter.cpp
+++ b/src/lib/server/InputFilter.cpp
@@ -26,6 +26,7 @@
 #include <cstdlib>
 #include <sstream>
 #include <cstring>
+#include <cstdint>

 // -----------------------------------------------------------------------------
 // Input Filter Condition