diff --git a/VisualStudio.gitignore b/VisualStudio.gitignore
index b2480836e86fb44eb5bd77c91301f3a5fb071d7a..62e4e8f2e152275bc25fdfdad1590d4488023ec4 100644
--- a/VisualStudio.gitignore
+++ b/VisualStudio.gitignore
@@ -347,3 +347,6 @@ healthchecksdb
 
 # Backup folder for Package Reference Convert tool in Visual Studio 2017
 MigrationBackup/
+
+# Ionide (cross platform F# VS Code tools) working folder
+.ionide/