diff --git a/CMakeLists.txt b/CMakeLists.txt
index fddf772..43798d9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -11,13 +11,13 @@ option(MQTT_C_TESTS "Build MQTT-C tests?" OFF)
 list (APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
 
 # MQTT-C library
-add_library(mqttc STATIC 
+add_library(mqttc STATIC
     src/mqtt_pal.c
     src/mqtt.c
 )
 target_include_directories(mqttc PUBLIC include)
 target_link_libraries(mqttc PUBLIC 
-    $<$<C_COMPILER_ID:MSVS>:ws2_32>
+    $<$<C_COMPILER_ID:MSVC>:ws2_32>
 )
 
 if(MQTT_C_BearSSL_SUPPORT)
@@ -89,7 +89,7 @@ if(MQTT_C_EXAMPLES)
 endif()
 
 # Build tests
-if(MQTT_C_TESTS)    
+if(MQTT_C_TESTS)
     find_path(CMOCKA_INCLUDE_DIR cmocka.h)
     find_library(CMOCKA_LIBRARY cmocka)
     if((NOT CMOCKA_INCLUDE_DIR) OR (NOT CMOCKA_LIBRARY))
diff --git a/include/mqtt_pal.h b/include/mqtt_pal.h
index 7a16f20..dbfd341 100644
--- a/include/mqtt_pal.h
+++ b/include/mqtt_pal.h
@@ -117,10 +117,10 @@ extern "C" {
     #endif
 #elif defined(_MSC_VER)
     #include <limits.h>
+    #include <winsock2.h>
     #include <windows.h>
     #include <time.h>
     #include <stdint.h>
-    #include <winsock2.h>
 
     typedef SSIZE_T ssize_t;
     #define MQTT_PAL_HTONS(s) htons(s)
diff --git a/src/mqtt_pal.c b/src/mqtt_pal.c
index 6335360..a273384 100644
--- a/src/mqtt_pal.c
+++ b/src/mqtt_pal.c
@@ -223,7 +223,7 @@ ssize_t mqtt_pal_recvall(mqtt_pal_socket_handle fd, void* buf, size_t bufsz, int
 ssize_t mqtt_pal_sendall(mqtt_pal_socket_handle fd, const void* buf, size_t len, int flags) {
     size_t sent = 0;
     while(sent < len) {
-        int tmp = BIO_write(fd, buf + sent, len - sent);
+        int tmp = BIO_write(fd, (const char*)buf + sent, len - sent);
         if (tmp > 0) {
             sent += (size_t) tmp;
         } else if (tmp <= 0 && !BIO_should_retry(fd)) {
@@ -235,13 +235,14 @@ ssize_t mqtt_pal_sendall(mqtt_pal_socket_handle fd, const void* buf, size_t len,
 }
 
 ssize_t mqtt_pal_recvall(mqtt_pal_socket_handle fd, void* buf, size_t bufsz, int flags) {
-    const void *const start = buf;
+    const char* const start = buf;
+    char* bufptr = buf;
     int rv;
     do {
-        rv = BIO_read(fd, buf, bufsz);
+        rv = BIO_read(fd, bufptr, bufsz);
         if (rv > 0) {
             /* successfully read bytes from the socket */
-            buf += rv;
+            bufptr += rv;
             bufsz -= rv;
         } else if (!BIO_should_retry(fd)) {
             /* an error occurred that wasn't "nothing to read". */
@@ -249,7 +250,7 @@ ssize_t mqtt_pal_recvall(mqtt_pal_socket_handle fd, void* buf, size_t bufsz, int
         }
     } while (!BIO_should_read(fd));
 
-    return (ssize_t)(buf - start);
+    return (ssize_t)(bufptr - start);
 }
 
 #elif defined(__unix__) || defined(__APPLE__)