diff --git a/simgear/misc/sg_path.cxx b/simgear/misc/sg_path.cxx
index 7c37d705..a2f6842f 100644
--- a/simgear/misc/sg_path.cxx
+++ b/simgear/misc/sg_path.cxx
@@ -988,7 +988,7 @@ std::wstring SGPath::wstr() const
 {
 #ifdef SG_WINDOWS
    size_t buflen = mbstowcs(NULL, path.c_str(), 0)+1;
-   wchar_t* wideBuf = malloc(buflen * sizeof(int));
+   wchar_t* wideBuf = (wchar_t*)malloc(buflen * sizeof(int));
    if (wideBuf) {
        size_t count = mbstowcs(wideBuf, path.c_str(), buflen);
        if (count == (size_t)-1) {