diff --git a/board/rsdproto/rsdproto.c b/board/rsdproto/rsdproto.c
index bf4fd53..312d4b8 100644
--- a/board/rsdproto/rsdproto.c
+++ b/board/rsdproto/rsdproto.c
@@ -210,7 +210,7 @@
 
 #define BCD_TO_BIN(val) ((val)=((val)&15) + ((val)>>4)*10)
 
-	if (i2c_read (RS5C372_PPC_I2C_ADR, 0, 1, buffer, sizeof (buffer))) {
+	if (! i2c_read (RS5C372_PPC_I2C_ADR, 0, 1, buffer, sizeof (buffer))) {
 		timedate->tm_sec = BCD_TO_BIN (buffer[0]);
 		timedate->tm_min = BCD_TO_BIN (buffer[1]);
 		timedate->tm_hour = BCD_TO_BIN (buffer[2]);
@@ -231,7 +231,7 @@
 	unsigned char buffer[8];
 	/*int rc;*/
 
-	if (i2c_read (address, 0, 1, buffer, 1)) {
+	if (! i2c_read (address, 0, 1, buffer, 1)) {
 		return (int) buffer[0];
 	} else {
 		/*printf("i2c error %02x\n", rc); */