diff --git a/prog/detect/detect.pl b/prog/detect/detect.pl
index 39fbb3cc..1d03d2dd 100755
--- a/prog/detect/detect.pl
+++ b/prog/detect/detect.pl
@@ -799,6 +799,10 @@ sub add_isa_to_chips_detected
            print("Can't open ",
                  "/dev/i2c-$new_misdetected_ref->[$j]->{devnr}?!?\n"),
            next;
+      i2c_set_slave_addr \*FILE,$new_misdetected_ref->[$j]->{address} or
+           print("Can't set I2C address for ",
+                 "/dev/i2c-$new_misdetected_ref->[$j]->{devnr}?!?\n"),
+           next;
       if (&$alias_detect ($datahash->{isa_addr},\*FILE,
                           $new_misdetected_ref->[$j]->{address})) {
         $new_misdetected_ref->[$j]->{isa_addr} = $datahash->{isa_addr};
@@ -816,6 +820,10 @@ sub add_isa_to_chips_detected
            print("Can't open ",
                  "/dev/i2c-$new_detected_ref->[$j]->{devnr}?!?\n"),
            next;
+      i2c_set_slave_addr \*FILE,$new_detected_ref->[$j]->{address} or
+           print("Can't set I2C address for ",
+                 "/dev/i2c-$new_detected_ref->[$j]->{devnr}?!?\n"),
+           next;
       if (&$alias_detect ($datahash->{isa_addr},\*FILE,
                           $new_detected_ref->[$j]->{address})) {
         $new_detected_ref->[$j]->{isa_addr} = $datahash->{isa_addr};
diff --git a/prog/detect/sensors-detect b/prog/detect/sensors-detect
index 39fbb3cc..1d03d2dd 100755
--- a/prog/detect/sensors-detect
+++ b/prog/detect/sensors-detect
@@ -799,6 +799,10 @@ sub add_isa_to_chips_detected
            print("Can't open ",
                  "/dev/i2c-$new_misdetected_ref->[$j]->{devnr}?!?\n"),
            next;
+      i2c_set_slave_addr \*FILE,$new_misdetected_ref->[$j]->{address} or
+           print("Can't set I2C address for ",
+                 "/dev/i2c-$new_misdetected_ref->[$j]->{devnr}?!?\n"),
+           next;
       if (&$alias_detect ($datahash->{isa_addr},\*FILE,
                           $new_misdetected_ref->[$j]->{address})) {
         $new_misdetected_ref->[$j]->{isa_addr} = $datahash->{isa_addr};
@@ -816,6 +820,10 @@ sub add_isa_to_chips_detected
            print("Can't open ",
                  "/dev/i2c-$new_detected_ref->[$j]->{devnr}?!?\n"),
            next;
+      i2c_set_slave_addr \*FILE,$new_detected_ref->[$j]->{address} or
+           print("Can't set I2C address for ",
+                 "/dev/i2c-$new_detected_ref->[$j]->{devnr}?!?\n"),
+           next;
       if (&$alias_detect ($datahash->{isa_addr},\*FILE,
                           $new_detected_ref->[$j]->{address})) {
         $new_detected_ref->[$j]->{isa_addr} = $datahash->{isa_addr};