diff --git a/tools/fdtgrep.c b/tools/fdtgrep.c
index 7af77b7afe..8d33205ea2 100644
--- a/tools/fdtgrep.c
+++ b/tools/fdtgrep.c
@@ -10,7 +10,10 @@
 
 #include <assert.h>
 #include <ctype.h>
+#include <errno.h>
 #include <getopt.h>
+#include <fcntl.h>
+#include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/tools/gen_ethaddr_crc.c b/tools/gen_ethaddr_crc.c
index fe9896dca9..8cf86f4835 100644
--- a/tools/gen_ethaddr_crc.c
+++ b/tools/gen_ethaddr_crc.c
@@ -6,6 +6,7 @@
  */
 
 #include <ctype.h>
+#include <stdbool.h>
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/tools/ifdtool.c b/tools/ifdtool.c
index 195b1533ab..729991ee33 100644
--- a/tools/ifdtool.c
+++ b/tools/ifdtool.c
@@ -12,6 +12,7 @@
 #include <assert.h>
 #include <fcntl.h>
 #include <getopt.h>
+#include <stdbool.h>
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
diff --git a/tools/imagetool.h b/tools/imagetool.h
index a8d505423b..e67de9b5ad 100644
--- a/tools/imagetool.h
+++ b/tools/imagetool.h
@@ -12,6 +12,7 @@
 #include "os_support.h"
 #include <errno.h>
 #include <fcntl.h>
+#include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/tools/mips-relocs.c b/tools/mips-relocs.c
index 8be69d320f..27d47308e0 100644
--- a/tools/mips-relocs.c
+++ b/tools/mips-relocs.c
@@ -11,6 +11,7 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <limits.h>
+#include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <sys/mman.h>