diff --git a/src/addon/mod/imscp/providers/imscp.ts b/src/addon/mod/imscp/providers/imscp.ts
index 58667b135..bd7eb8cf4 100644
--- a/src/addon/mod/imscp/providers/imscp.ts
+++ b/src/addon/mod/imscp/providers/imscp.ts
@@ -304,7 +304,7 @@ export class AddonModImscpProvider {
      * @param siteId Site ID. If not defined, current site.
      * @return Promise resolved with true if plugin is enabled, rejected or resolved with false otherwise.
      */
-    isPluginEnabled(siteId?: string): Promise<any> {
+    isPluginEnabled(siteId?: string): Promise<boolean> {
         return this.sitesProvider.getSite(siteId).then((site) => {
             return site.canDownloadFiles();
         });
diff --git a/src/addon/mod/lesson/providers/lesson.ts b/src/addon/mod/lesson/providers/lesson.ts
index 4c7a52711..b7fabe1f1 100644
--- a/src/addon/mod/lesson/providers/lesson.ts
+++ b/src/addon/mod/lesson/providers/lesson.ts
@@ -2775,7 +2775,7 @@ export class AddonModLessonProvider {
      * @param siteId Site ID. If not defined, current site.
      * @return Promise resolved with true if plugin is enabled, rejected or resolved with false otherwise.
      */
-    isPluginEnabled(siteId?: string): Promise<any> {
+    isPluginEnabled(siteId?: string): Promise<boolean> {
         return this.sitesProvider.getSite(siteId).then((site) => {
             // All WS were introduced at the same time so checking one is enough.
             return site.wsAvailable('mod_lesson_get_lesson_access_information');