diff --git a/src/libutil/current-process.hh b/src/libutil/current-process.hh
index 97ea70bf4..444c717d1 100644
--- a/src/libutil/current-process.hh
+++ b/src/libutil/current-process.hh
@@ -2,6 +2,7 @@
 ///@file
 
 #include <optional>
+#include <sys/resource.h>
 
 #include "types.hh"