diff --git a/CHANGELOG.md b/CHANGELOG.md
index 16bf040..00a9500 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,13 @@
+# Unreleased
+
+## Added
+
+## Fixed
+
+- Fix component resolution inside a set (in a rule of another component) (see tests for example)
+
+## Changed
+
 # 1.11.101 (2023-09-13 / 213279d)
 
 ## Fixed
@@ -78,4 +88,4 @@
 
 ## Added
 
-- Initial implementation
\ No newline at end of file
+- Initial implementation
diff --git a/src/lambdaisland/ornament.cljc b/src/lambdaisland/ornament.cljc
index d1d6848..10d665e 100644
--- a/src/lambdaisland/ornament.cljc
+++ b/src/lambdaisland/ornament.cljc
@@ -603,16 +603,21 @@
                           ~(walk/postwalk
                             (fn [o]
                               (if (vector? o)
-                                (into [(if (and (symbol? (first o))
-                                                (contains? @registry (qualify-sym &env (first o))))
-                                         `(str "." (get-in @registry ['~(qualify-sym &env (first o)) :classname]))
-                                         (first o))]
-                                      (mapcat (fn [s]
-                                                (if (and (symbol? s)
-                                                         (contains? @registry (qualify-sym &env s)))
-                                                  (get-in @registry [(qualify-sym &env s) :rules])
-                                                  [s])))
-                                      (next o))
+                                (let [component->selector
+                                      (fn [s]
+                                        (if (and (symbol? s)
+                                                 (contains? @registry (qualify-sym &env s)))
+                                          `(str "." (get-in @registry ['~(qualify-sym &env s) :classname]))
+                                          s))]
+                                  (into [(if (set? (first o))
+                                           (into #{} (map component->selector (first o)))
+                                           (component->selector (first o)))]
+                                        (mapcat (fn [s]
+                                                  (if (and (symbol? s)
+                                                           (contains? @registry (qualify-sym &env s)))
+                                                    (get-in @registry [(qualify-sym &env s) :rules])
+                                                    [s])))
+                                        (next o)))
                                 o))
                             (vec
                              (mapcat (fn [s]
diff --git a/test/lambdaisland/ornament_test.cljc b/test/lambdaisland/ornament_test.cljc
index 3800365..8e2b04f 100644
--- a/test/lambdaisland/ornament_test.cljc
+++ b/test/lambdaisland/ornament_test.cljc
@@ -422,6 +422,31 @@
 
        (reset! o/registry reg))))
 
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Component resolution
+
+(o/defstyled child-1 :div
+  :bg-red-100
+  ([]
+   [:p "hello"]))
+
+(o/defstyled child-2 :div
+  :bg-blue-100
+  ([]
+   [:p "world"]))
+
+(o/defstyled parent-set :div
+  [#{child-1 child-2} :bg-green-700]
+  ([]
+   [:<>
+    [child-1]
+    [child-2]]))
+
+#?(:clj
+   (deftest component-resolution-inside-set
+     (is (= ".ot__parent_set .ot__child_2,.ot__parent_set .ot__child_1{--gi-bg-opacity:1;background-color:rgba(21,128,61,var(--gi-bg-opacity))}"
+            (o/css parent-set)))))
+
 (comment
   (require 'kaocha.repl)
   (kaocha.repl/run)