diff --git a/src/sim65/paravirt.c b/src/sim65/paravirt.c
index dd8bc3127..dd65520a5 100644
--- a/src/sim65/paravirt.c
+++ b/src/sim65/paravirt.c
@@ -36,6 +36,8 @@
 #include <string.h>
 #include <stdlib.h>
 #include <fcntl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
 #if defined(_WIN32)
 #  define O_INITIAL O_BINARY
 #else