diff --git a/src/tool_cb_prg.c b/src/tool_cb_prg.c
index 286a3ffbcf..60a3804f9d 100644
--- a/src/tool_cb_prg.c
+++ b/src/tool_cb_prg.c
@@ -35,6 +35,12 @@
 
 #include "memdebug.h" /* keep this as LAST include */
 
+#ifdef HAVE_TERMIOS_H
+#  include <termios.h>
+#elif defined(HAVE_TERMIO_H)
+#  include <termio.h>
+#endif
+
 /* 200 values generated by this perl code:
 
    my $pi = 3.1415;