diff --git a/doc/ideajoin-examples.md b/doc/ideajoin-examples.md
index efad0b54c..ffa6cacbe 100644
--- a/doc/ideajoin-examples.md
+++ b/doc/ideajoin-examples.md
@@ -3,6 +3,11 @@ Put `set ideajoin` to your `~/.ideavimrc` to enable this functionality.
 
 Now, you can press `J` (`shift+j`) on a line or a selected block of text to join the lines together.
 
+:warning: This feature is language-specific. This means that the IDE should implement this feature for a particular
+language in order for the IDE to work as described below. If any of the examples provided below don't match your case, 
+please file an issue in the project related to your IDE: https://youtrack.jetbrains.com/.  
+Here is a list of known requests: https://youtrack.jetbrains.com/issues?q=links:VIM-3214.
+
 * Automatic join concatenated lines:
 
 ```