diff --git a/VERSION b/VERSION
index 55596b29f71b5dc7661cb817cf27a56f12e13d6a..1e3852840b57172af41e4323ea5262e777f99916 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-210
\ No newline at end of file
+211
\ No newline at end of file
diff --git a/lib/+artoa/+soundsources/+colorregister/add.m b/lib/+artoa/+soundsources/+colorregister/add.m
index 09c9ff6b5f788ef59552552e44c6b049096fa877..91211674b75e68c32fa22428a6a626f75cc5239c 100644
--- a/lib/+artoa/+soundsources/+colorregister/add.m
+++ b/lib/+artoa/+soundsources/+colorregister/add.m
@@ -7,7 +7,7 @@ soundsourceLogical = strcmp(register, pSoundsourceName);
 if ~any(soundsourceLogical)
     emptyCellIndex = find(strcmp(register, {''}));
     if ~isempty(emptyCellIndex)
-        register(emptyCellIndex) = {pSoundsourceName};
+        register(emptyCellIndex(1)) = {pSoundsourceName};
         colorIndex = emptyCellIndex;
         return;
     end