diff --git a/jtag/src/detect.c b/jtag/src/detect.c
index ebd0f2e8..7ccbdc99 100644
--- a/jtag/src/detect.c
+++ b/jtag/src/detect.c
@@ -23,6 +23,8 @@
  */
 
 #include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
 #include <ctype.h>
 #include <string.h>