diff --git a/client/.gitignore b/client/.gitignore
index c97c8943..4694bd3e 100644
--- a/client/.gitignore
+++ b/client/.gitignore
@@ -8,3 +8,5 @@
 /server-local.sh
 /browser/
 /ffmpeg/
+/client.iml
+/.idea/
diff --git a/common/.gitignore b/common/.gitignore
index 09e3bc9b..17f982a3 100644
--- a/common/.gitignore
+++ b/common/.gitignore
@@ -1,2 +1,4 @@
 /bin/
 /target/
+/common.iml
+/.idea/
diff --git a/master/.gitignore b/master/.gitignore
new file mode 100644
index 00000000..26fa2c6a
--- /dev/null
+++ b/master/.gitignore
@@ -0,0 +1,2 @@
+.idea
+master.iml
diff --git a/server/.gitignore b/server/.gitignore
index 6b69bd69..2bda3b99 100644
--- a/server/.gitignore
+++ b/server/.gitignore
@@ -7,3 +7,5 @@
 /jre/
 /server-local.sh
 ctbrec.pid
+/.idea/
+*.iml