diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/ScalaHttp4sServerCodegen.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/ScalaHttp4sServerCodegen.java
index fe8098feb1ce..776a30dfb77a 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/ScalaHttp4sServerCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/ScalaHttp4sServerCodegen.java
@@ -327,6 +327,8 @@ public void processOpts() {
         if (!additionalProperties.containsKey(EXCLUDE_SBT) && !Boolean.parseBoolean((String) additionalProperties.get(EXCLUDE_SBT))) {
             supportingFiles.add(new SupportingFile("build.sbt", "", "build.sbt"));
             supportingFiles.add(new SupportingFile("build.properties", "project", "build.properties"));
+            supportingFiles.add(new SupportingFile("project/plugins.mustache", "project", "plugins.sbt"));
+            supportingFiles.add(new SupportingFile("scalafmt.mustache", "", ".scalafmt.conf"));
         }
     }
 
diff --git a/modules/openapi-generator/src/main/resources/scala-http4s-server/project/plugins.mustache b/modules/openapi-generator/src/main/resources/scala-http4s-server/project/plugins.mustache
new file mode 100644
index 000000000000..eefc0dd27b23
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/scala-http4s-server/project/plugins.mustache
@@ -0,0 +1 @@
+addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.5.6")
diff --git a/modules/openapi-generator/src/main/resources/scala-http4s-server/scalafmt.mustache b/modules/openapi-generator/src/main/resources/scala-http4s-server/scalafmt.mustache
new file mode 100644
index 000000000000..e66032cc83c3
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/scala-http4s-server/scalafmt.mustache
@@ -0,0 +1,58 @@
+version=3.10.6
+runner.dialect = scala213
+project {
+  git = false
+  excludeFilters = [
+    scalafmt-benchmarks/src/resources,
+    sbt-test
+    bin/issue
+  ]
+  layout = StandardConvention
+}
+align {
+  preset = none
+  stripMargin = true
+}
+binPack {
+  importSelectors = fold
+}
+newlines {
+  avoidForSimpleOverflow = all
+  ignoreInSyntax = false
+  source = fold
+}
+rewrite {
+  rules = [
+    AvoidInfix,
+    Imports,
+    RedundantBraces,
+    RedundantParens,
+    SortModifiers,
+  ]
+  imports {
+    selectors = fold
+    removeRedundantSelectors = true
+    sort = ascii
+    groups = [
+      ["org\\.scalafmt\\..*"],
+      ["scala\\.meta\\..*", "org\\.scalameta\\..*"],
+      ["sbt\\..*"],
+      ["java.?\\..*"],
+      ["scala\\..*"],
+      ["org\\..*"],
+      ["com\\..*"],
+    ]
+  }
+  redundantBraces {
+    preset = all
+    oneStatApply {
+      parensMaxSpan = 300
+      bracesMinSpan = 300
+    }
+  }
+  redundantParens {
+    preset = all
+  }
+  sortModifiers.preset = styleGuide
+  trailingCommas.style = "always"
+}
diff --git a/samples/server/petstore/scala-http4s-server/.openapi-generator/FILES b/samples/server/petstore/scala-http4s-server/.openapi-generator/FILES
index 2f902263e957..6c54aebaa7cb 100644
--- a/samples/server/petstore/scala-http4s-server/.openapi-generator/FILES
+++ b/samples/server/petstore/scala-http4s-server/.openapi-generator/FILES
@@ -1,5 +1,7 @@
+.scalafmt.conf
 build.sbt
 project/build.properties
+project/plugins.sbt
 src/main/scala/org/openapitools/api.scala
 src/main/scala/org/openapitools/apis/FakeApi.scala
 src/main/scala/org/openapitools/apis/PetApi.scala
diff --git a/samples/server/petstore/scala-http4s-server/.scalafmt.conf b/samples/server/petstore/scala-http4s-server/.scalafmt.conf
new file mode 100644
index 000000000000..e66032cc83c3
--- /dev/null
+++ b/samples/server/petstore/scala-http4s-server/.scalafmt.conf
@@ -0,0 +1,58 @@
+version=3.10.6
+runner.dialect = scala213
+project {
+  git = false
+  excludeFilters = [
+    scalafmt-benchmarks/src/resources,
+    sbt-test
+    bin/issue
+  ]
+  layout = StandardConvention
+}
+align {
+  preset = none
+  stripMargin = true
+}
+binPack {
+  importSelectors = fold
+}
+newlines {
+  avoidForSimpleOverflow = all
+  ignoreInSyntax = false
+  source = fold
+}
+rewrite {
+  rules = [
+    AvoidInfix,
+    Imports,
+    RedundantBraces,
+    RedundantParens,
+    SortModifiers,
+  ]
+  imports {
+    selectors = fold
+    removeRedundantSelectors = true
+    sort = ascii
+    groups = [
+      ["org\\.scalafmt\\..*"],
+      ["scala\\.meta\\..*", "org\\.scalameta\\..*"],
+      ["sbt\\..*"],
+      ["java.?\\..*"],
+      ["scala\\..*"],
+      ["org\\..*"],
+      ["com\\..*"],
+    ]
+  }
+  redundantBraces {
+    preset = all
+    oneStatApply {
+      parensMaxSpan = 300
+      bracesMinSpan = 300
+    }
+  }
+  redundantParens {
+    preset = all
+  }
+  sortModifiers.preset = styleGuide
+  trailingCommas.style = "always"
+}
diff --git a/samples/server/petstore/scala-http4s-server/project/plugins.sbt b/samples/server/petstore/scala-http4s-server/project/plugins.sbt
new file mode 100644
index 000000000000..eefc0dd27b23
--- /dev/null
+++ b/samples/server/petstore/scala-http4s-server/project/plugins.sbt
@@ -0,0 +1 @@
+addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.5.6")