diff --git a/sys/opencrypto/xform_auth.h b/sys/opencrypto/xform_auth.h
--- a/sys/opencrypto/xform_auth.h
+++ b/sys/opencrypto/xform_auth.h
@@ -31,8 +31,7 @@
 #ifndef _CRYPTO_XFORM_AUTH_H_
 #define _CRYPTO_XFORM_AUTH_H_
 
-#include <sys/malloc.h>
-#include <sys/errno.h>
+#include <sys/types.h>
 
 #include <crypto/sha1.h>
 #include <crypto/sha2/sha224.h>
diff --git a/sys/opencrypto/xform_comp.h b/sys/opencrypto/xform_comp.h
--- a/sys/opencrypto/xform_comp.h
+++ b/sys/opencrypto/xform_comp.h
@@ -31,8 +31,7 @@
 #ifndef _CRYPTO_XFORM_COMP_H_
 #define _CRYPTO_XFORM_COMP_H_
 
-#include <sys/malloc.h>
-#include <sys/errno.h>
+#include <sys/types.h>
 
 #include <opencrypto/deflate.h>
 #include <opencrypto/cryptodev.h>
diff --git a/sys/opencrypto/xform_enc.h b/sys/opencrypto/xform_enc.h
--- a/sys/opencrypto/xform_enc.h
+++ b/sys/opencrypto/xform_enc.h
@@ -31,8 +31,8 @@
 #ifndef _CRYPTO_XFORM_ENC_H_
 #define _CRYPTO_XFORM_ENC_H_
 
-#include <sys/malloc.h>
-#include <sys/errno.h>
+#include <sys/types.h>
+
 #include <crypto/rijndael/rijndael.h>
 #include <crypto/camellia/camellia.h>
 #include <opencrypto/cryptodev.h>