diff --git a/.appveyor.yml b/.appveyor.yml
index 197097d1fd..d1d8d7c45b 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -54,9 +54,6 @@ test_script:
             Execute-Bash "VERBOSE=1 make -j2 check"
     }
 
-on_success:
-- cmd: C:\Python27\python.exe %APPVEYOR_BUILD_FOLDER%\scripts\test\appveyor-irc-notify.py irc.oftc.net:6697 tor-ci success
-
 on_failure:
 - cmd: C:\Python27\python.exe %APPVEYOR_BUILD_FOLDER%\scripts\test\appveyor-irc-notify.py irc.oftc.net:6697 tor-ci failure
 
diff --git a/changes/ticket27275 b/changes/ticket27275
new file mode 100644
index 0000000000..d1332e9540
--- /dev/null
+++ b/changes/ticket27275
@@ -0,0 +1,3 @@
+  o Minor features (continuous integration):
+    - Only post Appveyor IRC notifications when the build fails.
+      Implements ticket 27275.