diff --git a/CHANGES b/CHANGES
index ff2e9346..04c59d53 100644
--- a/CHANGES
+++ b/CHANGES
@@ -2,6 +2,7 @@ lm-sensors CHANGES file
 -----------------------
 
 SVN HEAD
+  sensors-detect: Fix error seen if I2C bus numbers are not sequential
   Makefile: Check for bison and flex
   sensors-detect: Improve LM90 and W83L771 detection
 
diff --git a/prog/detect/sensors-detect b/prog/detect/sensors-detect
index d2f87e5a..9add1e9e 100755
--- a/prog/detect/sensors-detect
+++ b/prog/detect/sensors-detect
@@ -5937,6 +5937,7 @@ sub generate_modprobes
 	# the adapter drivers so that the numbers will be the same. If not, then
 	# we only load the adapter drivers which are useful.
 	foreach $adap (@i2c_adapters) {
+		next unless defined $adap;
 		next if $adap->{autoload};
 		next if $adap->{driver} eq 'UNKNOWN';
 		next if not defined $configfile and not $adap->{used};