diff --git a/modules/openapi-generator/src/main/resources/dart-dio/gitignore.mustache b/modules/openapi-generator/src/main/resources/dart-dio/gitignore.mustache
index 8092a49d515..6d2ac22c0b4 100644
--- a/modules/openapi-generator/src/main/resources/dart-dio/gitignore.mustache
+++ b/modules/openapi-generator/src/main/resources/dart-dio/gitignore.mustache
@@ -30,8 +30,12 @@ pubspec.lock
 # Don’t commit files and directories created by other development environments.
 # For example, if your development environment creates any of the following files,
 # consider putting them in a global ignore file:
-*.iml         // IntelliJ
-*.ipr         // IntelliJ
-*.iws         // IntelliJ
-.idea/        // IntelliJ
-.DS_Store     // Mac
+
+# IntelliJ
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# Mac
+.DS_Store
diff --git a/modules/openapi-generator/src/main/resources/dart/libraries/dio/gitignore.mustache b/modules/openapi-generator/src/main/resources/dart/libraries/dio/gitignore.mustache
index 8092a49d515..6d2ac22c0b4 100644
--- a/modules/openapi-generator/src/main/resources/dart/libraries/dio/gitignore.mustache
+++ b/modules/openapi-generator/src/main/resources/dart/libraries/dio/gitignore.mustache
@@ -30,8 +30,12 @@ pubspec.lock
 # Don’t commit files and directories created by other development environments.
 # For example, if your development environment creates any of the following files,
 # consider putting them in a global ignore file:
-*.iml         // IntelliJ
-*.ipr         // IntelliJ
-*.iws         // IntelliJ
-.idea/        // IntelliJ
-.DS_Store     // Mac
+
+# IntelliJ
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# Mac
+.DS_Store
diff --git a/samples/openapi3/client/petstore/dart-dio-next/petstore_client_lib_fake/.gitignore b/samples/openapi3/client/petstore/dart-dio-next/petstore_client_lib_fake/.gitignore
index 8092a49d515..6d2ac22c0b4 100644
--- a/samples/openapi3/client/petstore/dart-dio-next/petstore_client_lib_fake/.gitignore
+++ b/samples/openapi3/client/petstore/dart-dio-next/petstore_client_lib_fake/.gitignore
@@ -30,8 +30,12 @@ pubspec.lock
 # Don’t commit files and directories created by other development environments.
 # For example, if your development environment creates any of the following files,
 # consider putting them in a global ignore file:
-*.iml         // IntelliJ
-*.ipr         // IntelliJ
-*.iws         // IntelliJ
-.idea/        // IntelliJ
-.DS_Store     // Mac
+
+# IntelliJ
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# Mac
+.DS_Store
diff --git a/samples/openapi3/client/petstore/dart-dio/petstore_client_lib/.gitignore b/samples/openapi3/client/petstore/dart-dio/petstore_client_lib/.gitignore
index 8092a49d515..6d2ac22c0b4 100644
--- a/samples/openapi3/client/petstore/dart-dio/petstore_client_lib/.gitignore
+++ b/samples/openapi3/client/petstore/dart-dio/petstore_client_lib/.gitignore
@@ -30,8 +30,12 @@ pubspec.lock
 # Don’t commit files and directories created by other development environments.
 # For example, if your development environment creates any of the following files,
 # consider putting them in a global ignore file:
-*.iml         // IntelliJ
-*.ipr         // IntelliJ
-*.iws         // IntelliJ
-.idea/        // IntelliJ
-.DS_Store     // Mac
+
+# IntelliJ
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# Mac
+.DS_Store
diff --git a/samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake/.gitignore b/samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake/.gitignore
index 8092a49d515..6d2ac22c0b4 100644
--- a/samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake/.gitignore
+++ b/samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake/.gitignore
@@ -30,8 +30,12 @@ pubspec.lock
 # Don’t commit files and directories created by other development environments.
 # For example, if your development environment creates any of the following files,
 # consider putting them in a global ignore file:
-*.iml         // IntelliJ
-*.ipr         // IntelliJ
-*.iws         // IntelliJ
-.idea/        // IntelliJ
-.DS_Store     // Mac
+
+# IntelliJ
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# Mac
+.DS_Store