diff --git a/.gitignore b/.gitignore
index 1389147b3b..fc3ad0e0f6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,6 +9,9 @@
 # NetBeans project files
 /nbproject/
 
+# PhpStorm project files
+.idea/
+
 # Arcanist scratch directory
 /.arc