diff --git a/src/lam/util/cmd_line.h b/src/lam/util/cmd_line.h
index e165e6f7fa..9d655ce7f2 100644
--- a/src/lam/util/cmd_line.h
+++ b/src/lam/util/cmd_line.h
@@ -10,7 +10,7 @@
 #include "lam_config.h"
 #include "lam/lfc/list.h"
 #include "lam/threads/mutex.h"
-
+#include "lam/constants.h"
 
 struct lam_cmd_line_t {
   /* Keep this instance safe from other threads */