diff --git a/src/libs/utils/process_stub_unix.c b/src/libs/utils/process_stub_unix.c
index 95614ef3689..3e713469e46 100644
--- a/src/libs/utils/process_stub_unix.c
+++ b/src/libs/utils/process_stub_unix.c
@@ -35,6 +35,7 @@
 #include <sys/ptrace.h>
 #include <fcntl.h>
 #include <unistd.h>
+#include <signal.h>
 #include <string.h>
 #include <stdlib.h>
 #include <stdio.h>