diff --git a/src/main.cpp b/src/main.cpp
index 0e2f3bac0..3fe32c219 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -101,8 +101,8 @@ struct COrphanTx {
     CTransaction tx;
     NodeId fromPeer;
 };
-map<uint256, COrphanTx> mapOrphanTransactions GUARDED_BY(cs_main);;
-map<uint256, set<uint256> > mapOrphanTransactionsByPrev GUARDED_BY(cs_main);;
+map<uint256, COrphanTx> mapOrphanTransactions GUARDED_BY(cs_main);
+map<uint256, set<uint256> > mapOrphanTransactionsByPrev GUARDED_BY(cs_main);
 void EraseOrphansFor(NodeId peer) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
 
 /**
diff --git a/src/net.cpp b/src/net.cpp
index f0f4cc8d3..227327dfb 100644
--- a/src/net.cpp
+++ b/src/net.cpp
@@ -1357,7 +1357,7 @@ void ThreadMapPort()
                     LogPrintf("AddPortMapping(%s, %s, %s) failed with code %d (%s)\n",
                         port, port, lanaddr, r, strupnperror(r));
                 else
-                    LogPrintf("UPnP Port Mapping successful.\n");;
+                    LogPrintf("UPnP Port Mapping successful.\n");
 
                 MilliSleep(20*60*1000); // Refresh every 20 minutes
             }
diff --git a/src/qt/bantablemodel.cpp b/src/qt/bantablemodel.cpp
index 09f502486..7707ce7b6 100644
--- a/src/qt/bantablemodel.cpp
+++ b/src/qt/bantablemodel.cpp
@@ -108,7 +108,7 @@ int BanTableModel::rowCount(const QModelIndex &parent) const
 int BanTableModel::columnCount(const QModelIndex &parent) const
 {
     Q_UNUSED(parent);
-    return columns.length();;
+    return columns.length();
 }
 
 QVariant BanTableModel::data(const QModelIndex &index, int role) const
@@ -183,4 +183,4 @@ bool BanTableModel::shouldShow()
     if (priv->size() > 0)
         return true;
     return false;
-}
\ No newline at end of file
+}
diff --git a/src/qt/guiutil.cpp b/src/qt/guiutil.cpp
index 0fcc5c23d..8148a8389 100644
--- a/src/qt/guiutil.cpp
+++ b/src/qt/guiutil.cpp
@@ -295,7 +295,7 @@ QString formatBitcoinURI(const Config &cfg, const SendCoinsRecipient &info)
 
     if (!info.message.isEmpty())
     {
-        QString msg(QUrl::toPercentEncoding(info.message));;
+        QString msg(QUrl::toPercentEncoding(info.message));
         ret += QString("%1message=%2").arg(paramCount == 0 ? "?" : "&").arg(msg);
         paramCount++;
     }
diff --git a/src/qt/peertablemodel.cpp b/src/qt/peertablemodel.cpp
index c72694864..3829696e0 100644
--- a/src/qt/peertablemodel.cpp
+++ b/src/qt/peertablemodel.cpp
@@ -152,7 +152,7 @@ int PeerTableModel::rowCount(const QModelIndex &parent) const
 int PeerTableModel::columnCount(const QModelIndex &parent) const
 {
     Q_UNUSED(parent);
-    return columns.length();;
+    return columns.length();
 }
 
 QVariant PeerTableModel::data(const QModelIndex &index, int role) const
diff --git a/src/test/rpc_tests.cpp b/src/test/rpc_tests.cpp
index 0279c5e58..bbda6a48f 100644
--- a/src/test/rpc_tests.cpp
+++ b/src/test/rpc_tests.cpp
@@ -238,7 +238,7 @@ BOOST_AUTO_TEST_CASE(rpc_ban)
     UniValue o1 = ar[0].get_obj();
     UniValue adr = find_value(o1, "address");
     BOOST_CHECK_EQUAL(adr.get_str(), "127.0.0.0/32");
-    BOOST_CHECK_NO_THROW(CallRPC(string("setban 127.0.0.0 remove")));;
+    BOOST_CHECK_NO_THROW(CallRPC(string("setban 127.0.0.0 remove")));
     BOOST_CHECK_NO_THROW(r = CallRPC(string("listbanned")));
     ar = r.get_array();
     BOOST_CHECK_EQUAL(ar.size(), 0);
@@ -268,7 +268,7 @@ BOOST_AUTO_TEST_CASE(rpc_ban)
     // must throw an exception because 127.0.0.1 is in already banned suubnet range
     BOOST_CHECK_THROW(r = CallRPC(string("setban 127.0.0.1 add")), runtime_error);
 
-    BOOST_CHECK_NO_THROW(CallRPC(string("setban 127.0.0.0/24 remove")));;
+    BOOST_CHECK_NO_THROW(CallRPC(string("setban 127.0.0.0/24 remove")));
     BOOST_CHECK_NO_THROW(r = CallRPC(string("listbanned")));
     ar = r.get_array();
     BOOST_CHECK_EQUAL(ar.size(), 0);