diff --git a/tools/probes/probes_demux.c b/tools/probes/probes_demux.c
index b92aaf88a19b..7b875cf9bb8a 100644
--- a/tools/probes/probes_demux.c
+++ b/tools/probes/probes_demux.c
@@ -14,6 +14,7 @@
 #include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
+#include <sys/types.h>
 #include <unistd.h>
 
 #include <ipc/probe_dma_frame.h>