diff --git a/CHANGES b/CHANGES
index 947edcee..8e74709b 100644
--- a/CHANGES
+++ b/CHANGES
@@ -8,6 +8,7 @@ SVN HEAD
   Man page i2cdetect.8: Describe the output convention
   Man page sensors.1: Update (option -c) and clean up
   Module icspll: Delete. It was useless and dangerous.
+  Program i2cdetect: Make the output clearer
   Program sensord: Add pc87247 support (fans only)
   Program sensors: Add pc87247 support (fans only)
                    Hide error on missing f71805f fan
diff --git a/prog/detect/i2cdetect.8 b/prog/detect/i2cdetect.8
index f47452f0..c9a7ce43 100644
--- a/prog/detect/i2cdetect.8
+++ b/prog/detect/i2cdetect.8
@@ -34,7 +34,7 @@ This program can confuse your I2C bus, cause data loss and worse!
 .SH INTERPRETING THE OUTPUT
 Each cell in the output table will contain one of the following symbols:
 .IP \(bu "\w'\(bu'u+1n"
-"XX". The address was probed but no chip answered.
+"--". The address was probed but no chip answered.
 .IP \(bu
 "UU". Probing was skipped, because this address is currently in use by
 a driver. This strongly suggests that there is a chip at this address.
diff --git a/prog/detect/i2cdetect.c b/prog/detect/i2cdetect.c
index 50ffe079..9ad02d81 100644
--- a/prog/detect/i2cdetect.c
+++ b/prog/detect/i2cdetect.c
@@ -103,7 +103,7 @@ int scan_i2c_bus(int file, const int mode, const int first, const int last)
 			}
 
 			if (res < 0)
-				printf("XX ");
+				printf("-- ");
 			else
 				printf("%02x ", i+j);
 		}