diff --git a/grc/CMakeLists.txt b/grc/CMakeLists.txt
index c95646d..17fad78 100644
--- a/grc/CMakeLists.txt
+++ b/grc/CMakeLists.txt
@@ -29,6 +29,7 @@
     misc_utils/gsm_controlled_rotator_cc.xml
     misc_utils/gsm_controlled_const_source_f.xml
     receiver/gsm_clock_offset_control.xml
-    misc_utils/gsm_message_printer.xml 
+    misc_utils/gsm_message_printer.xml
+    gsm_wireshark_sink.xml 
     misc_utils/gsm_clock_offset_corrector.xml DESTINATION share/gnuradio/grc/blocks
 )
diff --git a/grc/gsm_wireshark_sink.xml b/grc/gsm_wireshark_sink.xml
new file mode 100644
index 0000000..1e810d1
--- /dev/null
+++ b/grc/gsm_wireshark_sink.xml
@@ -0,0 +1,38 @@
+<?xml version="1.0"?>
+<block>
+  <name>wireshark_sink</name>
+  <key>gsm_wireshark_sink</key>
+  <category>gsm</category>
+  <import>import gsm</import>
+  <make>gsm.wireshark_sink()</make>
+  <!-- Make one 'param' node for every Parameter you want settable from the GUI.
+       Sub-nodes:
+       * name
+       * key (makes the value accessible as $keyname, e.g. in the make node)
+       * type -->
+  <param>
+    <name>...</name>
+    <key>...</key>
+    <type>...</type>
+  </param>
+
+  <!-- Make one 'sink' node per input. Sub-nodes:
+       * name (an identifier for the GUI)
+       * type
+       * vlen
+       * optional (set to 1 for optional inputs) -->
+  <sink>
+    <name>in</name>
+    <type><!-- e.g. int, float, complex, byte, short, xxx_vector, ...--></type>
+  </sink>
+
+  <!-- Make one 'source' node per output. Sub-nodes:
+       * name (an identifier for the GUI)
+       * type
+       * vlen
+       * optional (set to 1 for optional inputs) -->
+  <source>
+    <name>out</name>
+    <type><!-- e.g. int, float, complex, byte, short, xxx_vector, ...--></type>
+  </source>
+</block>