diff --git a/include/u-boot/sha1.h b/include/u-boot/sha1.h
index 09fee59..c1e9f67 100644
--- a/include/u-boot/sha1.h
+++ b/include/u-boot/sha1.h
@@ -14,6 +14,8 @@
 #ifndef _SHA1_H
 #define _SHA1_H
 
+#include <linux/types.h>
+
 #ifdef __cplusplus
 extern "C" {
 #endif
diff --git a/include/u-boot/sha256.h b/include/u-boot/sha256.h
index 9aa1251..a4fe176 100644
--- a/include/u-boot/sha256.h
+++ b/include/u-boot/sha256.h
@@ -1,6 +1,8 @@
 #ifndef _SHA256_H
 #define _SHA256_H
 
+#include <linux/types.h>
+
 #define SHA256_SUM_LEN	32
 #define SHA256_DER_LEN	19
 
diff --git a/include/u-boot/sha512.h b/include/u-boot/sha512.h
index 516729d..90bd96a 100644
--- a/include/u-boot/sha512.h
+++ b/include/u-boot/sha512.h
@@ -1,6 +1,8 @@
 #ifndef _SHA512_H
 #define _SHA512_H
 
+#include <linux/types.h>
+
 #define SHA384_SUM_LEN          48
 #define SHA384_DER_LEN          19
 #define SHA512_SUM_LEN          64