diff --git a/applicationdata.cpp b/applicationdata.cpp
index c209152..951bb14 100644
--- a/applicationdata.cpp
+++ b/applicationdata.cpp
@@ -223,8 +223,8 @@ void ApplicationData::readConfig()
             continue;
         }
         newConnection.channels = channelsString.split(',');
+        newConnection.channels.removeAll("");
         for (auto &ch: newConnection.channels) {
-            if (ch.isEmpty()) continue;
             ch.remove(' ');
             if (not ch.startsWith('#')) {
                 ch = '#' + ch;
diff --git a/connectiondata.cpp b/connectiondata.cpp
index c03bbcc..4f27a45 100644
--- a/connectiondata.cpp
+++ b/connectiondata.cpp
@@ -1,3 +1,11 @@
 #include "connectiondata.h"
 
 ConnectionData::ConnectionData() : port(0) {}
+
+bool ConnectionData::isOk()
+{
+    return (not address.isEmpty()     and
+            port != 0                 and
+            not displayName.isEmpty() and
+            not channels.isEmpty());
+}
diff --git a/connectiondata.h b/connectiondata.h
index ee3f458..4775b53 100644
--- a/connectiondata.h
+++ b/connectiondata.h
@@ -8,6 +8,7 @@
 struct ConnectionData
 {
     ConnectionData();
+    bool isOk();
 
     QString address;
     quint16 port;
diff --git a/ircclient.cpp b/ircclient.cpp
index 25747fd..c0355c0 100644
--- a/ircclient.cpp
+++ b/ircclient.cpp
@@ -28,6 +28,7 @@ IrcClient::IrcClient(const ConnectionData& config, QObject *parent) :
         dir.mkdir(path);
     }
     dir.cd(path);
+    m_connectionData.channels.removeAll("");
     for (auto chan: m_connectionData.channels) {
         chan.remove('#');
         dir.mkdir(chan);
diff --git a/main.cpp b/main.cpp
index 06223aa..fcf7f5b 100644
--- a/main.cpp
+++ b/main.cpp
@@ -68,6 +68,7 @@ int main(int argc, char *argv[])
 
     auto serversData = configuration.getConnections();
     for (auto server: serversData) {
+        if (not server.isOk()) continue;
         IrcClientStarter* wrapper = new IrcClientStarter(server, &webInterface);
         QThread* thread = new QThread;
         wrapper->moveToThread(thread);