diff --git a/scripts/postcss/css-url-to-variables.js b/scripts/postcss/css-url-to-variables.js
index 4480a2b8..1d4666f4 100644
--- a/scripts/postcss/css-url-to-variables.js
+++ b/scripts/postcss/css-url-to-variables.js
@@ -56,15 +56,7 @@ function addResolvedVariablesToRootSelector(root, { Rule, Declaration }) {
 function populateMapWithIcons(map, cssFileLocation) {
     const location = cssFileLocation.match(/(.+)\/.+\.css/)?.[1];
     const sharedObject = map.get(location);
-    if (sharedObject?.["icon"]) {
-        /**
-         * This postcss plugin is going to run on all theme variants of a single theme.
-         * But we only really need to populate the map once since theme variants only differ
-         * by the values of the base-variables and we don't care about values here.
-         */
-        return;
-    }
-    map.set(location, { ...sharedObject, "icon": Object.fromEntries(urlVariables) });
+    sharedObject["icon"] = Object.fromEntries(urlVariables);
 }
 
 /* *
diff --git a/scripts/postcss/tests/css-url-to-variables.test.js b/scripts/postcss/tests/css-url-to-variables.test.js
index e298599d..f406a38a 100644
--- a/scripts/postcss/tests/css-url-to-variables.test.js
+++ b/scripts/postcss/tests/css-url-to-variables.test.js
@@ -50,6 +50,7 @@ module.exports.tests = function tests() {
         },
         "map is populated with icons": async (assert) => {
             const compiledVariables = new Map();
+            compiledVariables.set("/foo/bar", { "derived-variables": ["background-color--darker-20", "accent-color--lighter-15"] });
             const inputCSS = `div {
                 background: no-repeat center/80% url("../img/image.svg?primary=main-color--darker-20");
             }
@@ -61,7 +62,9 @@ module.exports.tests = function tests() {
                 "icon-url-1": "/home/foo/bar/cool.svg?primary=blue&secondary=green",
             };
             await postcss([plugin({compiledVariables})]).process(inputCSS, { from: "/foo/bar/test.css", });
-            assert.deepEqual(expectedObject, compiledVariables.get("/foo/bar")["icon"]);
+            const sharedVariable = compiledVariables.get("/foo/bar");
+            assert.deepEqual(["background-color--darker-20", "accent-color--lighter-15"], sharedVariable["derived-variables"]);
+            assert.deepEqual(expectedObject, sharedVariable["icon"]);
         }
     };
 };