diff --git a/native/serverconnection/src/audio/AudioOutput.cpp b/native/serverconnection/src/audio/AudioOutput.cpp
index 8898410..c145df6 100644
--- a/native/serverconnection/src/audio/AudioOutput.cpp
+++ b/native/serverconnection/src/audio/AudioOutput.cpp
@@ -458,11 +458,11 @@ void AudioOutput::fill_buffer(void *output, size_t out_frame_count, size_t out_c
 	if(actual_sources > 0) {
 	    if(local_frame_count == out_frame_count) {
 	        /* Output */
-            if(!merge::merge_n_sources(output, this->source_merge_buffer, sources, this->channel_count_, local_frame_count)) {
+            if(!merge::merge_n_sources(output, this->source_merge_buffer, actual_sources, this->channel_count_, local_frame_count)) {
                 log_warn(category::audio, tr("failed to merge buffers!"));
             }
 	    } else {
-            if(!merge::merge_n_sources(this->source_buffer, this->source_merge_buffer, sources, this->channel_count_, local_frame_count)) {
+            if(!merge::merge_n_sources(this->source_buffer, this->source_merge_buffer, actual_sources, this->channel_count_, local_frame_count)) {
                 log_warn(category::audio, tr("failed to merge buffers!"));
             }