diff --git a/src/bin/e_util_suid.h b/src/bin/e_util_suid.h
index 128888ac8..b01ff792b 100644
--- a/src/bin/e_util_suid.h
+++ b/src/bin/e_util_suid.h
@@ -28,6 +28,7 @@
 #endif
 #include <sys/types.h>
 #include <pwd.h>
+#include <signal.h>
 #ifdef HAVE_PRCTL
 # include <sys/prctl.h>
 #elif defined(HAVE_PROCCTL)