diff --git a/kotlin-native/.gitignore b/kotlin-native/.gitignore
index 94a9f214684..38732eb4eed 100644
--- a/kotlin-native/.gitignore
+++ b/kotlin-native/.gitignore
@@ -74,4 +74,7 @@ compile_commands.json
 runtime/googletest/
 
 # Toolchain builder artifacts
-tools/toolchain_builder/artifacts
\ No newline at end of file
+tools/toolchain_builder/artifacts
+
+# ignore the project model created by CLion (for now).
+runtime/.idea