diff --git a/stack/btu/btu_init.c b/stack/btu/btu_init.c
index 688ed88..9f9ed0a 100644
--- a/stack/btu/btu_init.c
+++ b/stack/btu/btu_init.c
@@ -115,6 +115,8 @@
       /* Free the mandatory core stack components */
       l2c_free();
 
+      sdp_free();
+
 #if BLE_INCLUDED == TRUE
       gatt_free();
 #endif
diff --git a/stack/sdp/sdp_main.c b/stack/sdp/sdp_main.c
index c888817..8c6c612 100644
--- a/stack/sdp/sdp_main.c
+++ b/stack/sdp/sdp_main.c
@@ -85,6 +85,10 @@
     /* Clears all structures and local SDP database (if Server is enabled) */
     memset (&sdp_cb, 0, sizeof (tSDP_CB));
 
+    for (int i = 0; i < SDP_MAX_CONNECTIONS; i++) {
+      sdp_cb.ccb[i].sdp_conn_timer = alarm_new("sdp.sdp_conn_timer");
+    }
+
     /* Initialize the L2CAP configuration. We only care about MTU and flush */
     sdp_cb.l2cap_my_cfg.mtu_present       = TRUE;
     sdp_cb.l2cap_my_cfg.mtu               = SDP_MTU_SIZE;
@@ -139,6 +143,13 @@
     }
 }
 
+void sdp_free(void) {
+  for (int i = 0; i < SDP_MAX_CONNECTIONS; i++) {
+    alarm_free(sdp_cb.ccb[i].sdp_conn_timer);
+    sdp_cb.ccb[i].sdp_conn_timer = NULL;
+  }
+}
+
 #if (defined(SDP_DEBUG) && SDP_DEBUG == TRUE)
 /*******************************************************************************
 **
diff --git a/stack/sdp/sdp_utils.c b/stack/sdp/sdp_utils.c
index a6f0ba6..aa1bfb5a 100644
--- a/stack/sdp/sdp_utils.c
+++ b/stack/sdp/sdp_utils.c
@@ -120,8 +120,9 @@
     {
         if (p_ccb->con_state == SDP_STATE_IDLE)
         {
+            alarm_t* alarm = p_ccb->sdp_conn_timer;
             memset(p_ccb, 0, sizeof(tCONN_CB));
-            p_ccb->sdp_conn_timer = alarm_new("sdp.sdp_conn_timer");
+            p_ccb->sdp_conn_timer = alarm;
             return (p_ccb);
         }
     }
@@ -143,8 +144,7 @@
 void sdpu_release_ccb (tCONN_CB *p_ccb)
 {
     /* Ensure timer is stopped */
-    alarm_free(p_ccb->sdp_conn_timer);
-    p_ccb->sdp_conn_timer = NULL;
+    alarm_cancel(p_ccb->sdp_conn_timer);
 
     /* Drop any response pointer we may be holding */
     p_ccb->con_state = SDP_STATE_IDLE;
diff --git a/stack/sdp/sdpint.h b/stack/sdp/sdpint.h
index 05414cd..71dab92 100644
--- a/stack/sdp/sdpint.h
+++ b/stack/sdp/sdpint.h
@@ -246,6 +246,7 @@
 
 /* Functions provided by sdp_main.c */
 extern void     sdp_init (void);
+extern void     sdp_free(void);
 extern void     sdp_disconnect (tCONN_CB*p_ccb, UINT16 reason);
 
 #if (defined(SDP_DEBUG) && SDP_DEBUG == TRUE)