diff --git a/tools/armips.cpp b/tools/armips.cpp
index 271bf558..4c59cd05 100644
--- a/tools/armips.cpp
+++ b/tools/armips.cpp
@@ -52,6 +52,7 @@ SOFTWARE.
 #include <vector>
 #include <cstdlib>
 #include <cstdarg>
+#include <cstdint>
 #include <cctype>
 #include <cstring>
 #include <cmath>