diff --git a/src/activities/ActivityManager.cpp b/src/activities/ActivityManager.cpp
index e1d5dd21..96c3c7d0 100644
--- a/src/activities/ActivityManager.cpp
+++ b/src/activities/ActivityManager.cpp
@@ -2,6 +2,8 @@
 
 #include <HalPowerManager.h>
 
+#include <algorithm>
+
 #include "OpdsServerStore.h"
 #include "boot_sleep/BootActivity.h"
 #include "boot_sleep/SleepActivity.h"
@@ -230,7 +232,11 @@ void ActivityManager::popActivity() {
 
 bool ActivityManager::preventAutoSleep() const { return currentActivity && currentActivity->preventAutoSleep(); }
 
-bool ActivityManager::isReaderActivity() const { return currentActivity && currentActivity->isReaderActivity(); }
+bool ActivityManager::isReaderActivity() const {
+  return std::any_of(stackActivities.begin(), stackActivities.end(),
+                     [](const auto& activity) { return activity->isReaderActivity(); }) ||
+         (currentActivity && currentActivity->isReaderActivity());
+}
 
 bool ActivityManager::skipLoopDelay() const { return currentActivity && currentActivity->skipLoopDelay(); }
 
diff --git a/src/activities/reader/EpubReaderChapterSelectionActivity.h b/src/activities/reader/EpubReaderChapterSelectionActivity.h
index 216eadf4..20b53aa4 100644
--- a/src/activities/reader/EpubReaderChapterSelectionActivity.h
+++ b/src/activities/reader/EpubReaderChapterSelectionActivity.h
@@ -32,5 +32,4 @@ class EpubReaderChapterSelectionActivity final : public Activity {
   void onExit() override;
   void loop() override;
   void render(RenderLock&&) override;
-  bool isReaderActivity() const override { return true; }
 };
diff --git a/src/activities/reader/EpubReaderFootnotesActivity.h b/src/activities/reader/EpubReaderFootnotesActivity.h
index 85fe692d..7336d038 100644
--- a/src/activities/reader/EpubReaderFootnotesActivity.h
+++ b/src/activities/reader/EpubReaderFootnotesActivity.h
@@ -19,7 +19,6 @@ class EpubReaderFootnotesActivity final : public Activity {
   void onExit() override;
   void loop() override;
   void render(RenderLock&&) override;
-  bool isReaderActivity() const override { return true; }
 
  private:
   const std::vector<FootnoteEntry>& footnotes;
diff --git a/src/activities/reader/EpubReaderMenuActivity.h b/src/activities/reader/EpubReaderMenuActivity.h
index 3937d62c..9ddba93d 100644
--- a/src/activities/reader/EpubReaderMenuActivity.h
+++ b/src/activities/reader/EpubReaderMenuActivity.h
@@ -32,7 +32,6 @@ class EpubReaderMenuActivity final : public Activity {
   void onExit() override;
   void loop() override;
   void render(RenderLock&&) override;
-  bool isReaderActivity() const override { return true; }
 
  private:
   struct MenuItem {
diff --git a/src/activities/reader/EpubReaderPercentSelectionActivity.h b/src/activities/reader/EpubReaderPercentSelectionActivity.h
index ad68fc32..8cba8664 100644
--- a/src/activities/reader/EpubReaderPercentSelectionActivity.h
+++ b/src/activities/reader/EpubReaderPercentSelectionActivity.h
@@ -15,7 +15,6 @@ class EpubReaderPercentSelectionActivity final : public Activity {
   void onExit() override;
   void loop() override;
   void render(RenderLock&&) override;
-  bool isReaderActivity() const override { return true; }
 
  private:
   // Current percent value (0-100) shown on the slider.
diff --git a/src/activities/reader/KOReaderSyncActivity.h b/src/activities/reader/KOReaderSyncActivity.h
index 29010699..ec4e1fde 100644
--- a/src/activities/reader/KOReaderSyncActivity.h
+++ b/src/activities/reader/KOReaderSyncActivity.h
@@ -41,7 +41,6 @@ class KOReaderSyncActivity final : public Activity {
   void loop() override;
   void render(RenderLock&&) override;
   bool preventAutoSleep() override { return state == CONNECTING || state == SYNCING; }
-  bool isReaderActivity() const override { return true; }
 
  private:
   enum State {
diff --git a/src/activities/reader/QrDisplayActivity.h b/src/activities/reader/QrDisplayActivity.h
index d6ff236a..3cfdb6b3 100644
--- a/src/activities/reader/QrDisplayActivity.h
+++ b/src/activities/reader/QrDisplayActivity.h
@@ -14,7 +14,6 @@ class QrDisplayActivity final : public Activity {
   void onExit() override;
   void loop() override;
   void render(RenderLock&&) override;
-  bool isReaderActivity() const override { return true; }
 
  private:
   std::string textPayload;
diff --git a/src/activities/reader/XtcReaderChapterSelectionActivity.h b/src/activities/reader/XtcReaderChapterSelectionActivity.h
index 75d44215..42040ad5 100644
--- a/src/activities/reader/XtcReaderChapterSelectionActivity.h
+++ b/src/activities/reader/XtcReaderChapterSelectionActivity.h
@@ -23,5 +23,4 @@ class XtcReaderChapterSelectionActivity final : public Activity {
   void onExit() override;
   void loop() override;
   void render(RenderLock&&) override;
-  bool isReaderActivity() const override { return true; }
 };