diff --git a/trick_source/codegen/Interface_Code_Gen/FieldDescription.cpp b/trick_source/codegen/Interface_Code_Gen/FieldDescription.cpp
index 153bef32..e9c0c73f 100644
--- a/trick_source/codegen/Interface_Code_Gen/FieldDescription.cpp
+++ b/trick_source/codegen/Interface_Code_Gen/FieldDescription.cpp
@@ -3,6 +3,7 @@
 #include <algorithm>
 #include <sstream>
 #include <set>
+#include <stack>
 
 #include <libgen.h>
 #include <regex.h>