1 files changed, 2 insertions, 2 deletions
diff --git a/gpib.c b/gpib.c
index 598e25c..dee8b66 100644
--- a/gpib.c
+++ b/gpib.c
@@ -583,13 +583,13 @@ static unsigned long int TNT_DATA_COUNT()
 
 static void TNT_Out(int reg, unsigned int byte)
 {
-	bus_writebyte (TNT_Port + reg, (uint8_t) byte);
+	bus_writebyte ((uint8_t) (TNT_Port + reg), (uint8_t) byte);
 }
 
 
 static unsigned char TNT_In(int reg)
 {
-	return (unsigned char) bus_readbyte (TNT_Port + reg);
+	return (unsigned char) bus_readbyte ((uint8_t) (TNT_Port + reg));
 }