diff --git a/src/omnicore/dex.cpp b/src/omnicore/dex.cpp
index a5b07f482c224..cd87bf3930ed6 100644
--- a/src/omnicore/dex.cpp
+++ b/src/omnicore/dex.cpp
@@ -42,6 +42,20 @@ bool DEx_offerExists(const std::string& addressSeller, uint32_t propertyId)
     return !(my_offers.find(key) == my_offers.end());
 }
 
+/**
+ * Checks, if the seller has any open offer.
+ */
+bool DEx_hasOffer(const std::string& addressSeller)
+{
+    for (auto const& offer : my_offers) {
+        if (offer.first.find(addressSeller) == 0) {
+            return true;
+        }
+    }
+
+    return false;
+}
+
 /**
  * Retrieves a sell offer.
  *
diff --git a/src/omnicore/dex.h b/src/omnicore/dex.h
index 2ce14e9a4ee0b..46d1bdc18b765 100644
--- a/src/omnicore/dex.h
+++ b/src/omnicore/dex.h
@@ -231,6 +231,7 @@ extern AcceptMap my_accepts;
 int64_t calculateDesiredBTC(const int64_t amountOffered, const int64_t amountDesired, const int64_t amountAvailable);
 
 bool DEx_offerExists(const std::string& addressSeller, uint32_t propertyId);
+bool DEx_hasOffer(const std::string& addressSeller);
 CMPOffer* DEx_getOffer(const std::string& addressSeller, uint32_t propertyId);
 bool DEx_acceptExists(const std::string& addressSeller, uint32_t propertyId, const std::string& addressBuyer);
 CMPAccept* DEx_getAccept(const std::string& addressSeller, uint32_t propertyId, const std::string& addressBuyer);
diff --git a/src/omnicore/rpcrequirements.cpp b/src/omnicore/rpcrequirements.cpp
index c150b81a50305..27b6bf781432b 100644
--- a/src/omnicore/rpcrequirements.cpp
+++ b/src/omnicore/rpcrequirements.cpp
@@ -118,7 +118,7 @@ void RequireMatchingDExOffer(const std::string& address, uint32_t propertyId)
 void RequireNoOtherDExOffer(const std::string& address, uint32_t propertyId)
 {
     LOCK(cs_tally);
-    if (mastercore::DEx_offerExists(address, propertyId)) {
+    if (mastercore::DEx_hasOffer(address)) {
         throw JSONRPCError(RPC_TYPE_ERROR, "Another active sell offer from the given address already exists on the distributed exchange");
     }
 }