diff --git a/serialport.c b/serialport.c
index 7ee60db..6200083 100644
--- a/serialport.c
+++ b/serialport.c
@@ -34,6 +34,7 @@
 #include <tchar.h>
 #include <stdio.h>
 #else
+#include <limits.h>
 #include <termios.h>
 #include <sys/ioctl.h>
 #endif
@@ -700,7 +701,7 @@ enum sp_return sp_open(struct sp_port *port, enum sp_mode flags)
 	data.term.c_oflag &= ~OFILL;
 #endif
 	data.term.c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN);
-	data.term.c_cc[VMIN] = 0;
+	data.term.c_cc[VMIN] = 1;
 	data.term.c_cc[VTIME] = 0;
 
 	/* Ignore modem status lines; enable receiver; leave control lines alone on close. */