diff --git a/bstring/bstraux.c b/bstring/bstraux.c
index 15794ab..f331c47 100644
--- a/bstring/bstraux.c
+++ b/bstring/bstraux.c
@@ -1004,7 +1004,7 @@ bSecureInput(int maxlen, int termchar, bNgetc vgetchar, void *vgcCtx)
 	for (i = 0; ; i++) {
 		if ((size_t)termchar == c ||
 		    (maxlen > 0 && i >= (size_t)maxlen)) {
-			c = EOF;
+			c = (size_t)EOF;
 		} else {
 			c = vgetchar (vgcCtx);
 		}
diff --git a/bstring/bstrlib.h b/bstring/bstrlib.h
index 98c283a..0e61bc5 100644
--- a/bstring/bstrlib.h
+++ b/bstring/bstrlib.h
@@ -57,6 +57,10 @@
 	__attribute__ ((__format__ (__printf__, format, argument)))
 #define BSTR_UNUSED \
 	__attribute__ ((__unused__))
+#elif defined(_MSC_VER)
+#define BSTR_PRINTF(format, argument)
+#define BSTR_UNUSED \
+	__pragma(warning(suppress:4100))
 #else
 #define BSTR_PRINTF(format, argument)
 #define BSTR_UNUSED