diff --git a/src/callback.hpp b/src/callback.hpp
index 0be7dc0..b1c8d0b 100644
--- a/src/callback.hpp
+++ b/src/callback.hpp
@@ -227,6 +227,12 @@
     {
     }
 
+    /** @brief Start internal timer if the condition is satisfied.
+     *
+     * When the timer expires, it calls operator() for the
+     * ConditionalCallback with the context saved in
+     * DeferrableCallback instance.
+     */
     void operator()(Context ctx) override
     {
         if (!timer)
@@ -234,8 +240,10 @@
             timer = std::make_unique<TimerType>(
                 sdeventplus::Event::get_default(),
                 // **INDENT-OFF**
-                [ctx, this](auto& source) {
-                    this->ConditionalCallback<CallbackAccess>::operator()(ctx);
+                [this](auto& source) {
+                    // The timer uses the context saved on timer enable
+                    this->ConditionalCallback<CallbackAccess>::operator()(
+                        this->ctx);
                 });
             // **INDENT-ON**
         }
@@ -245,6 +253,8 @@
             if (!timer->isEnabled())
             {
                 // This is the first time the condition evaluated.
+                // Save current context for timer use.
+                this->ctx = ctx;
                 // Start the countdown.
                 timer->restartOnce(delayInterval);
             }
@@ -262,6 +272,9 @@
 
     /** @brief Delegated timer functions. */
     std::unique_ptr<TimerType> timer;
+
+    /** @brief Current context for timer. */
+    Context ctx;
 };
 
 } // namespace monitoring