diff --git a/include/programmer.h b/include/programmer.h
index 8821f0e..537d139 100644
--- a/include/programmer.h
+++ b/include/programmer.h
@@ -20,6 +20,7 @@
 #ifndef __PROGRAMMER_H__
 #define __PROGRAMMER_H__ 1
 
+#include <stdbool.h>
 #include <stdint.h>
 
 #include "flash.h"	/* for chipaddr and flashctx */
@@ -260,8 +261,8 @@
 #if CONFIG_INTERNAL == 1
 extern int is_laptop;
 extern bool laptop_ok;
-extern int force_boardenable;
-extern int force_boardmismatch;
+extern bool force_boardenable;
+extern bool force_boardmismatch;
 void probe_superio(void);
 int register_superio(struct superio s);
 extern enum chipbustype internal_buses_supported;
diff --git a/internal.c b/internal.c
index 59719d2..8d0b905 100644
--- a/internal.c
+++ b/internal.c
@@ -16,6 +16,7 @@
 
 #include <strings.h>
 #include <string.h>
+#include <stdbool.h>
 #include <stdlib.h>
 #include "flash.h"
 #include "programmer.h"
@@ -26,8 +27,8 @@
 #include "hwaccess_x86_io.h"
 #endif
 
-int force_boardenable = 0;
-int force_boardmismatch = 0;
+bool force_boardenable = false;
+bool force_boardmismatch = false;
 
 #if defined(__i386__) || defined(__x86_64__)
 void probe_superio(void)
@@ -87,21 +88,21 @@
 
 enum chipbustype internal_buses_supported = BUS_NONE;
 
-static int get_params(int *boardenable, int *boardmismatch,
-		int *force_laptop, int *not_a_laptop,
+static int get_params(bool *boardenable, bool *boardmismatch,
+		bool *force_laptop, bool *not_a_laptop,
 		char **board_vendor, char **board_model)
 {
 	char *arg;
 
 	/* default values. */
-	*force_laptop = 0;
-	*not_a_laptop = 0;
+	*force_laptop = false;
+	*not_a_laptop = false;
 	*board_vendor = NULL;
 	*board_model = NULL;
 
 	arg = extract_programmer_param("boardenable");
 	if (arg && !strcmp(arg,"force")) {
-		*boardenable = 1;
+		*boardenable = true;
 	} else if (arg && !strlen(arg)) {
 		msg_perr("Missing argument for boardenable.\n");
 		free(arg);
@@ -115,7 +116,7 @@
 
 	arg = extract_programmer_param("boardmismatch");
 	if (arg && !strcmp(arg,"force")) {
-		*boardmismatch = 1;
+		*boardmismatch = true;
 	} else if (arg && !strlen(arg)) {
 		msg_perr("Missing argument for boardmismatch.\n");
 		free(arg);
@@ -129,9 +130,9 @@
 
 	arg = extract_programmer_param("laptop");
 	if (arg && !strcmp(arg, "force_I_want_a_brick"))
-		*force_laptop = 1;
+		*force_laptop = true;
 	else if (arg && !strcmp(arg, "this_is_not_a_laptop"))
-		*not_a_laptop = 1;
+		*not_a_laptop = true;
 	else if (arg && !strlen(arg)) {
 		msg_perr("Missing argument for laptop.\n");
 		free(arg);
@@ -162,8 +163,8 @@
 static int internal_init(void)
 {
 	int ret = 0;
-	int force_laptop;
-	int not_a_laptop;
+	bool force_laptop;
+	bool not_a_laptop;
 	char *board_vendor;
 	char *board_model;
 #if defined(__i386__) || defined(__x86_64__)