diff --git a/pjsip/include/pjsua-lib/pjsua.h b/pjsip/include/pjsua-lib/pjsua.h
index f33132c44b..0876fbdd55 100644
--- a/pjsip/include/pjsua-lib/pjsua.h
+++ b/pjsip/include/pjsua-lib/pjsua.h
@@ -426,6 +426,16 @@ typedef struct pj_stun_resolve_result pj_stun_resolve_result;
 #   define PJSUA_TRICKLE_ICE_NEW_CAND_CHECK_INTERVAL    100
 #endif
 
+/**
+ * Specify if PJSUA should check for merged requests as per RFC 3261 section
+ * 8.2.2.2. If a merged request is detected, PJSUA will automatically reply
+ * with a 482 - Loop Detected.
+ *
+ * Default: 1 (enabled)
+ */
+#ifndef PJSUA_DETECT_MERGED_REQUESTS
+#   define PJSUA_DETECT_MERGED_REQUESTS  1
+#endif
 
 /**
  * This enumeration represents pjsua state.
diff --git a/pjsip/src/pjsua-lib/pjsua_core.c b/pjsip/src/pjsua-lib/pjsua_core.c
index 8324019d9e..943368021d 100644
--- a/pjsip/src/pjsua-lib/pjsua_core.c
+++ b/pjsip/src/pjsua-lib/pjsua_core.c
@@ -663,6 +663,7 @@ static pj_bool_t mod_pjsua_on_rx_request(pjsip_rx_data *rdata)
 {
     pj_bool_t processed = PJ_FALSE;
 
+#if PJSUA_DETECT_MERGED_REQUESTS
     if (pjsip_tsx_detect_merged_requests(rdata)) {
         PJ_LOG(4, (THIS_FILE, "Merged request detected"));
 
@@ -673,6 +674,7 @@ static pj_bool_t mod_pjsua_on_rx_request(pjsip_rx_data *rdata)
 
         return PJ_TRUE;
     }
+#endif
 
     PJSUA_LOCK();