diff --git a/grc/gsm_block_tree.xml b/grc/gsm_block_tree.xml
index f9ff1ff..bb705c9 100644
--- a/grc/gsm_block_tree.xml
+++ b/grc/gsm_block_tree.xml
@@ -54,6 +54,7 @@
       <block>gsm_bursts_printer</block>
       <block>gsm_burst_file_sink</block>
       <block>gsm_burst_file_source</block>
+      <block>gsm_collect_system_info</block>
       <block>gsm_message_file_sink</block>
       <block>gsm_message_file_source</block>
       <block>gsm_extract_system_info</block>