diff --git a/src/ewf_adapter_renesas_common.h b/src/ewf_adapter_renesas_common.h
index c3d7cb76..1b9e6b21 100644
--- a/src/ewf_adapter_renesas_common.h
+++ b/src/ewf_adapter_renesas_common.h
@@ -382,7 +382,7 @@ ewf_result ewf_adapter_renesas_common_udp_set_dtls_configuration(ewf_socket_udp*
 ewf_result ewf_adapter_renesas_common_udp_bind(ewf_socket_udp* socket_ptr, uint32_t local_port);
 ewf_result ewf_adapter_renesas_common_udp_shutdown(ewf_socket_udp* socket_ptr);
 ewf_result ewf_adapter_renesas_common_udp_send_to(ewf_socket_udp* socket_ptr, const char* remote_address_str, uint32_t remote_port, const uint8_t* buffer_ptr, uint32_t buffer_length);
-ewf_result ewf_adapter_renesas_common_udp_receive_from(ewf_socket_udp* socket_ptr, char* remote_address_str, uint32_t* remote_address_length_ptr, uint32_t* remote_port_ptr, char* buffer_ptr, uint32_t* buffer_length_ptr, bool wait);
+ewf_result ewf_adapter_renesas_common_udp_receive_from(ewf_socket_udp* socket_ptr, char* remote_address_str, uint32_t* remote_address_length_ptr, uint32_t* remote_port_ptr, uint8_t* buffer_ptr, uint32_t* buffer_length_ptr, bool wait);
 
 #endif /* EWF_ADAPTER_RENESAS_COMMON_UDP_ENABLED */
 
diff --git a/src/ewf_adapter_renesas_common_internet.c b/src/ewf_adapter_renesas_common_internet.c
index 1e377af6..2f4da0d4 100644
--- a/src/ewf_adapter_renesas_common_internet.c
+++ b/src/ewf_adapter_renesas_common_internet.c
@@ -1085,7 +1085,7 @@ ewf_result ewf_adapter_renesas_common_udp_send_to(ewf_socket_udp* socket_ptr, co
         buffer_ptr, buffer_length);
 }
 
-ewf_result ewf_adapter_renesas_common_udp_receive_from(ewf_socket_udp* socket_ptr, char* remote_address_str, uint32_t* remote_address_length_ptr, uint32_t* remote_port_ptr, char* buffer_ptr, uint32_t* buffer_length_ptr, bool wait)
+ewf_result ewf_adapter_renesas_common_udp_receive_from(ewf_socket_udp* socket_ptr, char* remote_address_str, uint32_t* remote_address_length_ptr, uint32_t* remote_port_ptr, uint8_t* buffer_ptr, uint32_t* buffer_length_ptr, bool wait)
 {
     EWF_PARAMETER_NOT_USED(remote_address_str);
     EWF_PARAMETER_NOT_USED(remote_address_length_ptr);