diff --git a/TESTS/netsocket/socket_sigio/main.cpp b/TESTS/netsocket/socket_sigio/main.cpp
index e0949f7e37..853d157a92 100644
--- a/TESTS/netsocket/socket_sigio/main.cpp
+++ b/TESTS/netsocket/socket_sigio/main.cpp
@@ -67,16 +67,17 @@ bool find_substring(const char *first, const char *last, const char *s_first, co
 void get_data(TCPSocket* sock){
     bool result = false;
     // Server will respond with HTTP GET's success code
-    const int ret = sock->recv(buffer, sizeof(buffer) - 1);
-    if(ret <= 0)
-        return;
-
-    buffer[ret] = '\0';
+    int len = 0;
+    int ret;
+    while((ret = sock->recv(buffer+len, sizeof(buffer) - 1 - len)) > 0) {
+      len += ret;
+    }
+    buffer[len] = '\0';
 
     // Find 200 OK HTTP status in reply
-    bool found_200_ok = find_substring(buffer, buffer + ret, HTTP_OK_STR, HTTP_OK_STR + strlen(HTTP_OK_STR));
+    bool found_200_ok = find_substring(buffer, buffer + len, HTTP_OK_STR, HTTP_OK_STR + strlen(HTTP_OK_STR));
     // Find "Hello World!" string in reply
-    bool found_hello = find_substring(buffer, buffer + ret, HTTP_HELLO_STR, HTTP_HELLO_STR + strlen(HTTP_HELLO_STR));
+    bool found_hello = find_substring(buffer, buffer + len, HTTP_HELLO_STR, HTTP_HELLO_STR + strlen(HTTP_HELLO_STR));
 
     TEST_ASSERT_TRUE(found_200_ok);
     TEST_ASSERT_TRUE(found_hello);
@@ -85,7 +86,7 @@ void get_data(TCPSocket* sock){
 
     TEST_ASSERT_EQUAL(result, true);
 
-    printf("HTTP: Received %d chars from server\r\n", ret);
+    printf("HTTP: Received %d chars from server\r\n", len);
     printf("HTTP: Received 200 OK status ... %s\r\n", found_200_ok ? "[OK]" : "[FAIL]");
     printf("HTTP: Received '%s' status ... %s\r\n", HTTP_HELLO_STR, found_hello ? "[OK]" : "[FAIL]");
     printf("HTTP: Received message:\r\n");