diff --git a/src/storage/ExtensionBasedMapper.ts b/src/storage/ExtensionBasedMapper.ts
index 6d8634d93..427673a2c 100644
--- a/src/storage/ExtensionBasedMapper.ts
+++ b/src/storage/ExtensionBasedMapper.ts
@@ -118,7 +118,7 @@ export class ExtensionBasedMapper implements FileIdentifierMapper {
    *
    * @returns A ResourcePath object containing path and (optional) slug fields.
    */
-  public exctractDocumentName(identifier: ResourceIdentifier): ResourcePath {
+  public extractDocumentName(identifier: ResourceIdentifier): ResourcePath {
     const [ , containerPath, documentName ] = /^(.*\/)([^/]+\/?)?$/u.exec(this.getRelativePath(identifier)) ?? [];
     if (
       (typeof containerPath !== 'string' || normalizePath(containerPath) === '/') && typeof documentName !== 'string') {
diff --git a/src/storage/FileResourceStore.ts b/src/storage/FileResourceStore.ts
index d005583c5..aaafc156d 100644
--- a/src/storage/FileResourceStore.ts
+++ b/src/storage/FileResourceStore.ts
@@ -151,7 +151,7 @@ export class FileResourceStore implements ResourceStore {
 
     // Break up the request URI in the different parts `containerPath` and `documentName` as we know their semantics
     // from addResource to call the InteractionController in the same way.
-    const { containerPath, documentName } = this.resourceMapper.exctractDocumentName(identifier);
+    const { containerPath, documentName } = this.resourceMapper.extractDocumentName(identifier);
     // eslint-disable-next-line no-param-reassign
     representation.metadata.identifier = DataFactory.namedNode(identifier.path);
     const raw = representation.metadata.quads();