diff --git a/src/keystore.cpp b/src/keystore.cpp
index 46402ea25..594e0c61d 100644
--- a/src/keystore.cpp
+++ b/src/keystore.cpp
@@ -33,6 +33,9 @@ bool CBasicKeyStore::AddKeyPubKey(const CKey& key, const CPubKey &pubkey)
 
 bool CBasicKeyStore::AddCScript(const CScript& redeemScript)
 {
+    if (redeemScript.size() > MAX_SCRIPT_ELEMENT_SIZE)
+        return error("CBasicKeyStore::AddCScript() : redeemScripts > %i bytes are invalid", MAX_SCRIPT_ELEMENT_SIZE);
+
     LOCK(cs_KeyStore);
     mapScripts[redeemScript.GetID()] = redeemScript;
     return true;
diff --git a/src/rpcmisc.cpp b/src/rpcmisc.cpp
index 2675a3226..a56e58cc3 100644
--- a/src/rpcmisc.cpp
+++ b/src/rpcmisc.cpp
@@ -176,7 +176,7 @@ Value validateaddress(const Array& params, bool fHelp)
 //
 // Used by addmultisigaddress / createmultisig:
 //
-CScript _createmultisig(const Array& params)
+CScript _createmultisig_redeemScript(const Array& params)
 {
     int nRequired = params[0].get_int();
     const Array& keys = params[1].get_array();
@@ -228,6 +228,11 @@ CScript _createmultisig(const Array& params)
     }
     CScript result;
     result.SetMultisig(nRequired, pubkeys);
+
+    if (result.size() > MAX_SCRIPT_ELEMENT_SIZE)
+        throw runtime_error(
+                strprintf("redeemScript exceeds size limit: %d > %d", result.size(), MAX_SCRIPT_ELEMENT_SIZE));
+
     return result;
 }
 
@@ -263,7 +268,7 @@ Value createmultisig(const Array& params, bool fHelp)
     }
 
     // Construct using pay-to-script-hash:
-    CScript inner = _createmultisig(params);
+    CScript inner = _createmultisig_redeemScript(params);
     CScriptID innerID = inner.GetID();
     CBitcoinAddress address(innerID);
 
diff --git a/src/rpcwallet.cpp b/src/rpcwallet.cpp
index bda3709df..d39d1bef8 100644
--- a/src/rpcwallet.cpp
+++ b/src/rpcwallet.cpp
@@ -871,7 +871,7 @@ Value sendmany(const Array& params, bool fHelp)
 }
 
 // Defined in rpcmisc.cpp
-extern CScript _createmultisig(const Array& params);
+extern CScript _createmultisig_redeemScript(const Array& params);
 
 Value addmultisigaddress(const Array& params, bool fHelp)
 {
@@ -908,7 +908,7 @@ Value addmultisigaddress(const Array& params, bool fHelp)
         strAccount = AccountFromValue(params[2]);
 
     // Construct using pay-to-script-hash:
-    CScript inner = _createmultisig(params);
+    CScript inner = _createmultisig_redeemScript(params);
     CScriptID innerID = inner.GetID();
     pwalletMain->AddCScript(inner);