diff --git a/src/init.cpp b/src/init.cpp
index 5b9aa76f5622..21c7ee96a3c6 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -683,7 +683,8 @@ bool AppInit2(boost::thread_group& threadGroup)
 
     //ignore masternodes below protocol version
     nMasternodeMinProtocol = GetArg("-masternodeminprotocol", 0);
-    std::string strWalletFile = GetArg("-wallet", "wallet.dat");
+    //define wallet
+    strWalletFile = GetArg("-wallet", "wallet.dat");
 
     // ********************************************************* Step 4: application initialization: dir lock, daemonize, pidfile, debug log
 
@@ -701,6 +702,10 @@ bool AppInit2(boost::thread_group& threadGroup)
     if (!lock.try_lock())
         return InitError(strprintf(_("Cannot obtain a lock on data directory %s. DarkCoin is probably already running."), strDataDir.c_str()));
 
+    //use <wallet>_debug.log with -wallet option
+    if(strWalletFile != "wallet.dat")
+        strDebugFile = boost::filesystem::basename(strWalletFile) + "_debug.log";
+
     if (GetBoolArg("-shrinkdebugfile", !fDebug))
         ShrinkDebugFile();
     LogPrintf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n");
diff --git a/src/util.cpp b/src/util.cpp
index 7c3500b208b7..36fb5025d069 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -73,6 +73,8 @@ map<string, vector<string> > mapMultiArgs;
 bool fMasterNode = false;
 string strMasterNodePrivKey = "";
 string strMasterNodeAddr = "";
+string strWalletFile = "wallet.dat";
+string strDebugFile = "debug.log";
 int nInstantXDepth = 1;
 int nDarksendRounds = 2;
 int nAnonymizeDarkcoinAmount = 1000;
@@ -250,7 +252,7 @@ static void DebugPrintInit()
     assert(fileout == NULL);
     assert(mutexDebugLog == NULL);
 
-    boost::filesystem::path pathDebug = GetDataDir() / "debug.log";
+    boost::filesystem::path pathDebug = GetDataDir() / strDebugFile;
     fileout = fopen(pathDebug.string().c_str(), "a");
     if (fileout) setbuf(fileout, NULL); // unbuffered
 
@@ -287,7 +289,7 @@ int LogPrint(const char* category, const char* pszFormat, ...)
         // reopen the log file, if requested
         if (fReopenDebugLog) {
             fReopenDebugLog = false;
-            boost::filesystem::path pathDebug = GetDataDir() / "debug.log";
+            boost::filesystem::path pathDebug = GetDataDir() / strDebugFile;
             if (freopen(pathDebug.string().c_str(),"a",fileout) != NULL)
                 setbuf(fileout, NULL); // unbuffered
         }
@@ -1287,7 +1289,7 @@ void AllocateFileRange(FILE *file, unsigned int offset, unsigned int length) {
 void ShrinkDebugFile()
 {
     // Scroll debug.log if it's getting too big
-    boost::filesystem::path pathLog = GetDataDir() / "debug.log";
+    boost::filesystem::path pathLog = GetDataDir() / strDebugFile;
     FILE* file = fopen(pathLog.string().c_str(), "r");
     if (file && GetFilesize(file) > 10 * 1000000)
     {
diff --git a/src/util.h b/src/util.h
index 507ade862dfd..4b5a4a492c7f 100644
--- a/src/util.h
+++ b/src/util.h
@@ -137,6 +137,8 @@ extern int nLiquidityProvider;
 extern bool fEnableDarksend;
 extern int64 enforceMasternodePaymentsTime;
 extern std::string strMasterNodeAddr;
+extern std::string strWalletFile;
+extern std::string strDebugFile;
 extern int nMasternodeMinProtocol;
 extern int keysLoaded;
 extern bool fSucessfullyLoaded;