diff --git a/exercises/resistor-color-duo/canonical-data.json b/exercises/resistor-color-duo/canonical-data.json
index 8eea12e842..8e29cb5152 100644
--- a/exercises/resistor-color-duo/canonical-data.json
+++ b/exercises/resistor-color-duo/canonical-data.json
@@ -1,6 +1,6 @@
 {
   "exercise": "resistor-color-duo",
-  "version": "2.1.0",
+  "version": "2.2.0",
   "cases": [
     {
       "description": "Brown and black",
@@ -34,6 +34,14 @@
       },
       "expected": 33
     },
+    {
+      "description": "Black and brown",
+      "property": "value",
+      "input": {
+        "colors": ["black", "brown"]
+      },
+      "expected": 1
+    },
     {
       "description": "Ignore additional colors",
       "property": "value",
diff --git a/exercises/resistor-color-duo/description.md b/exercises/resistor-color-duo/description.md
index 6d10075c61..e30d762bb3 100644
--- a/exercises/resistor-color-duo/description.md
+++ b/exercises/resistor-color-duo/description.md
@@ -2,10 +2,10 @@ If you want to build something using a Raspberry Pi, you'll probably use _resist
 
 * Each resistor has a resistance value.
 * Resistors are small - so small in fact that if you printed the resistance value on them, it would be hard to read.
-To get around this problem, manufacturers print color-coded bands onto the resistors to denote their resistance values. Each band has a position and a numeric value. For example, if they printed a brown band (value 1) followed by a green band (value 5), it would translate to the number 15.
 
-In this exercise you are going to create a helpful program so that you don't have to remember the values of the bands. The program will take color names as input and output a two digit number, even if the input is more than two colors!
+To get around this problem, manufacturers print color-coded bands onto the resistors to denote their resistance values. Each band has a numeric and a positional value. For example, if they printed a brown band (value 1) followed by a green band (value 5), it would translate to the numeric value.
 
+In this exercise you are going to create a helpful program so that you don't have to remember the numeric values of the bands. The program will take color names as input and output a numeric value of at most two digits.
 
 The band colors are encoded as follows:
 
@@ -21,6 +21,6 @@ The band colors are encoded as follows:
 - White: 9
 
 From the example above:
-brown-green should return 15
-brown-green-violet should return 15 too, ignoring the third color.
 
+- Brown and green should return 15.
+- If your language track enables more than two colors as input, such as brown, green and violet, this should return 15, too, ignoring additional colors beyond the first two.