diff --git a/backends/mixer_alsa9.cpp b/backends/mixer_alsa9.cpp
index 458cd3a5..5955e9af 100644
--- a/backends/mixer_alsa9.cpp
+++ b/backends/mixer_alsa9.cpp
@@ -305,7 +305,7 @@ int Mixer_ALSA::openAlsaDevice(const QString& devName)
     }
     const char* mixer_card_name =  snd_ctl_card_info_get_name( hw_info );
     //QString mixer_card_name_QString = mixer_card_name;
-    registerCard(mixer_card_name);
+    registerCard(mixer_card_name, devName.mid(devName.indexOf(':') + 1).toUInt() + 1);
 
 
     snd_ctl_close( ctl_handle );
diff --git a/backends/mixer_backend.h b/backends/mixer_backend.h
index eeb932f4..9ed9593b 100644
--- a/backends/mixer_backend.h
+++ b/backends/mixer_backend.h
@@ -189,10 +189,10 @@ protected:
 	 *
 	 * @param cardBaseName
 	 */
-  void registerCard(QString cardBaseName)
+  void registerCard(QString cardBaseName, unsigned discriminator = 0)
   {
 		m_mixerName = cardBaseName;
-		int cardDiscriminator = 1 + s_mixerNums[cardBaseName];
+        int cardDiscriminator = discriminator == 0? 1 + s_mixerNums[cardBaseName] : discriminator;
 		qCDebug(KMIX_LOG) << "cardBaseName=" << cardBaseName << ", cardDiscriminator=" << cardDiscriminator;
 		_cardInstance = cardDiscriminator;
 		_cardRegistered = true;