diff --git a/source/backend/engine/CarlaEngineNative.cpp b/source/backend/engine/CarlaEngineNative.cpp
index 278c0b40d..c2d849172 100644
--- a/source/backend/engine/CarlaEngineNative.cpp
+++ b/source/backend/engine/CarlaEngineNative.cpp
@@ -422,6 +422,10 @@ protected:
 
             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))
                 plugin->setCustomData(type, key, value, true);
+
+            delete[] type;
+            delete[] key;
+            delete[] value;
         }
         else if (std::strcmp(msg, "set_chunk_data") == 0)
         {
@@ -433,6 +437,8 @@ protected:
 
             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))
                 plugin->setChunkData(cdata);
+
+            delete[] cdata;
         }
         else if (std::strcmp(msg, "prepare_for_save") == 0)
         {
diff --git a/source/externalui.py b/source/externalui.py
index 66c4b7769..d1fef463b 100755
--- a/source/externalui.py
+++ b/source/externalui.py
@@ -71,6 +71,9 @@ class ExternalUI(object):
     def d_setParameterValue(self, index, value):
         self.send(["control", index, value])
 
+    def d_setProgram(self, channel, bank, program):
+        self.send(["program", channel, bank, program])
+
     def d_setState(self, key, value):
         self.send(["configure", key, value])
 
@@ -83,7 +86,7 @@ class ExternalUI(object):
     def d_parameterChanged(self, index, value):
         return
 
-    def d_programChanged(self, index):
+    def d_programChanged(self, channel, bank, program):
         return
 
     def d_stateChanged(self, key, value):
@@ -141,8 +144,10 @@ class ExternalUI(object):
                 self.d_parameterChanged(index, value)
 
             elif msg == "program":
-                index = int(self.fPipeRecv.readline())
-                self.d_programChanged(index)
+                channel = int(self.fPipeRecv.readline())
+                bank    = int(self.fPipeRecv.readline())
+                program = int(self.fPipeRecv.readline())
+                self.d_programChanged(channel, bank, program)
 
             elif msg == "configure":
                 key   = self.fPipeRecv.readline().strip().replace("\r", "\n")