diff --git a/.changeset/slimy-pigs-grow.md b/.changeset/slimy-pigs-grow.md
new file mode 100644
index 0000000..66367ea
--- /dev/null
+++ b/.changeset/slimy-pigs-grow.md
@@ -0,0 +1,5 @@
+---
+"rdf-web-access-control": patch
+---
+
+Pattern function would not have been called
diff --git a/packages/rdf-web-access-control/index.ts b/packages/rdf-web-access-control/index.ts
index 1676d45..c312df6 100644
--- a/packages/rdf-web-access-control/index.ts
+++ b/packages/rdf-web-access-control/index.ts
@@ -42,7 +42,7 @@ function agentClass(agent: GraphPointer | undefined) {
 
 function combinePatterns(patterns: Required<Check>['additionalPatterns'], acl: Variable) {
   if (Array.isArray(patterns)) {
-    return patterns.reduce((prev, next) => sparql`${prev}\n${next}`, sparql``)
+    return patterns.reduce((prev, next) => sparql`${prev}\n${next(acl)}`, sparql``)
   }
 
   return patterns(acl)