diff --git a/modules/swagger-codegen/src/main/resources/scala/gitignore.mustache b/modules/swagger-codegen/src/main/resources/scala/gitignore.mustache
index c58d83b3189..ad2b0d3ecd8 100644
--- a/modules/swagger-codegen/src/main/resources/scala/gitignore.mustache
+++ b/modules/swagger-codegen/src/main/resources/scala/gitignore.mustache
@@ -1,3 +1,4 @@
+# scala specific
 *.class
 *.log
 
@@ -15,3 +16,7 @@ project/plugins/project/
 # Scala-IDE specific
 .scala_dependencies
 .worksheet
+
+# IntelliJ specific
+.idea
+*.iml
diff --git a/modules/swagger-codegen/src/main/resources/scalatra/gitignore.mustache b/modules/swagger-codegen/src/main/resources/scalatra/gitignore.mustache
index c58d83b3189..ad2b0d3ecd8 100644
--- a/modules/swagger-codegen/src/main/resources/scalatra/gitignore.mustache
+++ b/modules/swagger-codegen/src/main/resources/scalatra/gitignore.mustache
@@ -1,3 +1,4 @@
+# scala specific
 *.class
 *.log
 
@@ -15,3 +16,7 @@ project/plugins/project/
 # Scala-IDE specific
 .scala_dependencies
 .worksheet
+
+# IntelliJ specific
+.idea
+*.iml
diff --git a/samples/client/petstore/scala/.gitignore b/samples/client/petstore/scala/.gitignore
index c58d83b3189..ad2b0d3ecd8 100644
--- a/samples/client/petstore/scala/.gitignore
+++ b/samples/client/petstore/scala/.gitignore
@@ -1,3 +1,4 @@
+# scala specific
 *.class
 *.log
 
@@ -15,3 +16,7 @@ project/plugins/project/
 # Scala-IDE specific
 .scala_dependencies
 .worksheet
+
+# IntelliJ specific
+.idea
+*.iml
diff --git a/samples/server/petstore/scalatra/.gitignore b/samples/server/petstore/scalatra/.gitignore
index c58d83b3189..ad2b0d3ecd8 100644
--- a/samples/server/petstore/scalatra/.gitignore
+++ b/samples/server/petstore/scalatra/.gitignore
@@ -1,3 +1,4 @@
+# scala specific
 *.class
 *.log
 
@@ -15,3 +16,7 @@ project/plugins/project/
 # Scala-IDE specific
 .scala_dependencies
 .worksheet
+
+# IntelliJ specific
+.idea
+*.iml