diff --git a/CHANGELOG.md b/CHANGELOG.md
index f3235f6..57d909d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+# 2.2.1
+
+### Bug Fixes
+* Addresses #121 - `.edf` incompatible changed ending to `.bdf` 
+
 # 2.2.0
 
 ### Bug Fixes
diff --git a/OpenBCI_GUI/DataLogging.pde b/OpenBCI_GUI/DataLogging.pde
index 0fc4830..65269c5 100644
--- a/OpenBCI_GUI/DataLogging.pde
+++ b/OpenBCI_GUI/DataLogging.pde
@@ -940,9 +940,9 @@ public class OutputFile_BDF {
    * @returns {String} - A fully qualified name of an output file with `str`.
    */
   private String getFileName(String s) {
-    String output = "SavedData"+System.getProperty("file.separator")+"OpenBCI-EDF-";
+    String output = "SavedData"+System.getProperty("file.separator")+"OpenBCI-BDF-";
     output += s;
-    output += ".edf";
+    output += ".bdf";
     return output;
   }