diff --git a/examples/mqtt-client/main.c b/examples/mqtt-client/main.c
index 677d2926..61953f86 100644
--- a/examples/mqtt-client/main.c
+++ b/examples/mqtt-client/main.c
@@ -18,7 +18,7 @@ static const char *s_topic = "mg/test";
 static void fn(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
   if (ev == MG_EV_ERROR) {
     // On error, log error message
-    LOG(LL_ERROR, ("%p %s", c->fd, ev_data));
+    LOG(LL_ERROR, ("%p %s", c->fd, (char *) ev_data));
   } else if (ev == MG_EV_CONNECT) {
     // If target URL is SSL/TLS, command client connection to use TLS
     if (mg_url_is_ssl(s_url)) {
diff --git a/examples/multi-threaded/main.c b/examples/multi-threaded/main.c
index acd6baff..e4c86e17 100644
--- a/examples/multi-threaded/main.c
+++ b/examples/multi-threaded/main.c
@@ -82,7 +82,7 @@ static void cb(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
     }
   } else if (ev == MG_EV_POLL && c->fn_data != NULL) {
     // On each poll iteration, try to receive response data
-    int sock = (int) c->fn_data;
+    int sock = (int) (long) c->fn_data;
     struct response response = {NULL, 0};
     if (recv(sock, (void *) &response, sizeof(response), 0) ==
         sizeof(response)) {
diff --git a/examples/websocket-client/main.c b/examples/websocket-client/main.c
index fbcc1cb5..17347b29 100644
--- a/examples/websocket-client/main.c
+++ b/examples/websocket-client/main.c
@@ -13,7 +13,7 @@ static const char *s_url = "ws://localhost:8000/websocket";
 static void fn(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
   if (ev == MG_EV_ERROR) {
     // On error, log error message
-    LOG(LL_ERROR, ("%p %s", c->fd, ev_data));
+    LOG(LL_ERROR, ("%p %s", c->fd, (char *) ev_data));
   } else if (ev == MG_EV_WS_OPEN) {
     // When websocket handshake is successful, send message
     mg_ws_send(c, "hello", 5, WEBSOCKET_OP_TEXT);