diff --git a/ble/Gap.h b/ble/Gap.h
index f94880e..5b4067a 100644
--- a/ble/Gap.h
+++ b/ble/Gap.h
@@ -1047,6 +1047,7 @@ public:
     virtual ble_error_t reset(void) {
         /* Notify that the instance is about to shutdown */
         shutdownCallChain.call(this);
+        shutdownCallChain.clear();
 
         /* Clear Gap state */
         state.advertising = 0;
diff --git a/ble/GattClient.h b/ble/GattClient.h
index d523e0c..c65207f 100644
--- a/ble/GattClient.h
+++ b/ble/GattClient.h
@@ -376,6 +376,7 @@ public:
     virtual ble_error_t reset(void) {
         /* Notify that the instance is about to shutdown */
         shutdownCallChain.call(this);
+        shutdownCallChain.clear();
 
         onDataReadCallbackChain.clear();
         onDataWriteCallbackChain.clear();
diff --git a/ble/GattServer.h b/ble/GattServer.h
index 3f89bc8..ea46a88 100644
--- a/ble/GattServer.h
+++ b/ble/GattServer.h
@@ -447,6 +447,7 @@ public:
     virtual ble_error_t reset(void) {
         /* Notify that the instance is about to shutdown */
         shutdownCallChain.call(this);
+        shutdownCallChain.clear();
 
         serviceCount = 0;
         characteristicCount = 0;
diff --git a/ble/SecurityManager.h b/ble/SecurityManager.h
index e9996c5..e508954 100644
--- a/ble/SecurityManager.h
+++ b/ble/SecurityManager.h
@@ -284,6 +284,7 @@ public:
     virtual ble_error_t reset(void) {
         /* Notify that the instance is about to shutdown */
         shutdownCallChain.call(this);
+        shutdownCallChain.clear();
 
         securitySetupInitiatedCallback = NULL;
         securitySetupCompletedCallback = NULL;