--- a/devtools/client/shared/test/browser_theme.js
+++ b/devtools/client/shared/test/browser_theme.js
@@ -96,12 +96,12 @@ function testColorExistence() {
     "comment", "body-color", "body-color-alt", "content-color1", "content-color2",
     "content-color3", "highlight-green", "highlight-blue", "highlight-bluegrey",
     "highlight-purple", "highlight-lightorange", "highlight-orange", "highlight-red",
     "highlight-pink"
   ];
 
   for (let type of vars) {
     ok(getColor(type, "light"), `${type} is a valid color in light theme`);
-    ok(getColor(type, "dark"), `${type} is a valid color in light theme`);
-    ok(getColor(type, "firebug"), `${type} is a valid color in light theme`);
+    ok(getColor(type, "dark"), `${type} is a valid color in dark theme`);
+    ok(getColor(type, "firebug"), `${type} is a valid color in firebug theme`);
   }
 }