diff --git a/include/u-boot/rsa-mod-exp.h b/include/u-boot/rsa-mod-exp.h
index 1da8af1bb8..7b7c2915a9 100644
--- a/include/u-boot/rsa-mod-exp.h
+++ b/include/u-boot/rsa-mod-exp.h
@@ -66,7 +66,7 @@ int rsa_mod_exp(struct udevice *dev, const uint8_t *sig, uint32_t sig_len,
 		struct key_prop *node, uint8_t *out);
 
 #if defined(CONFIG_CMD_ZYNQ_RSA)
-int zynq_pow_mod(u32 *keyptr, u32 *inout);
+int zynq_pow_mod(uint32_t *keyptr, uint32_t *inout);
 #endif
 
 /**
diff --git a/lib/rsa/rsa-mod-exp.c b/lib/rsa/rsa-mod-exp.c
index 78c688d14c..74f9eb16cc 100644
--- a/lib/rsa/rsa-mod-exp.c
+++ b/lib/rsa/rsa-mod-exp.c
@@ -321,7 +321,7 @@ int rsa_mod_exp_sw(const uint8_t *sig, uint32_t sig_len,
  *        pow_mod calculation required for zynq is bit different from
  *        pw_mod above here, hence defined zynq specific routine.
  */
-int zynq_pow_mod(u32 *keyptr, u32 *inout)
+int zynq_pow_mod(uint32_t *keyptr, uint32_t *inout)
 {
 	u32 *result, *ptr;
 	uint i;