diff --git a/library/net_sockets.c b/library/net_sockets.c
index c7b358d..1a88c22 100644
--- a/library/net_sockets.c
+++ b/library/net_sockets.c
@@ -48,6 +48,8 @@
 
 #include <string.h>
 
+#include "mbedtls/error.h"
+
 #if (defined(_WIN32) || defined(_WIN32_WCE)) && !defined(EFIX64) && \
     !defined(EFI32)
 
@@ -147,7 +149,7 @@
 int mbedtls_net_connect( mbedtls_net_context *ctx, const char *host,
                          const char *port, int proto )
 {
-    int ret;
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     struct addrinfo hints, *addr_list, *cur;
 
     if( ( ret = net_prepare() ) != 0 )
@@ -313,7 +315,7 @@
                         mbedtls_net_context *client_ctx,
                         void *client_ip, size_t buf_size, size_t *ip_len )
 {
-    int ret;
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     int type;
 
     struct sockaddr_storage client_addr;
@@ -455,7 +457,7 @@
 
 int mbedtls_net_poll( mbedtls_net_context *ctx, uint32_t rw, uint32_t timeout )
 {
-    int ret;
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     struct timeval tv;
 
     fd_set read_fds;
@@ -540,7 +542,7 @@
  */
 int mbedtls_net_recv( void *ctx, unsigned char *buf, size_t len )
 {
-    int ret;
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     int fd = ((mbedtls_net_context *) ctx)->fd;
 
     if( fd < 0 )
@@ -577,7 +579,7 @@
 int mbedtls_net_recv_timeout( void *ctx, unsigned char *buf,
                               size_t len, uint32_t timeout )
 {
-    int ret;
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     struct timeval tv;
     fd_set read_fds;
     int fd = ((mbedtls_net_context *) ctx)->fd;
@@ -620,7 +622,7 @@
  */
 int mbedtls_net_send( void *ctx, const unsigned char *buf, size_t len )
 {
-    int ret;
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     int fd = ((mbedtls_net_context *) ctx)->fd;
 
     if( fd < 0 )