diff --git a/src/main/java/org/scalariform/ScalariformMojo.java b/src/main/java/org/scalariform/ScalariformMojo.java
index bb7ec2e..63e88d1 100644
--- a/src/main/java/org/scalariform/ScalariformMojo.java
+++ b/src/main/java/org/scalariform/ScalariformMojo.java
@@ -20,6 +20,13 @@ public class ScalariformMojo extends AbstractMojo {
      */
     protected String baseDir;
 
+    /**
+     * Source file encoding, e.g. UTF-8. If not set, defaults to the platform default encoding.
+     *
+     * @parameter expression="${encoding}" default-value="${project.build.sourceEncoding}"
+     */
+    protected String encoding;
+
     /**
      *  @parameter default-value=false
      */
@@ -122,7 +129,7 @@ public class ScalariformMojo extends AbstractMojo {
 
     public void execute() throws MojoExecutionException {
 
-	MojoFormatter.format(baseDir, this.getLog(),
+	MojoFormatter.format(baseDir, encoding, this.getLog(),
                              alignParameters, 
                              alignSingleLineCaseStatements,
                              alignSingleLineCaseStatements_maxArrowIndent,
diff --git a/src/main/scala/org/scalariform/MojoFormatter.scala b/src/main/scala/org/scalariform/MojoFormatter.scala
index 4cb4f23..bd51f5b 100644
--- a/src/main/scala/org/scalariform/MojoFormatter.scala
+++ b/src/main/scala/org/scalariform/MojoFormatter.scala
@@ -9,7 +9,7 @@ import java.io.{ File, FilenameFilter, FileFilter }
 
 import scala.collection.JavaConversions._
 
-import scala.io.Source
+import scala.io.{Codec, Source}
 
 import org.apache.maven.plugin.logging.Log
 
@@ -41,6 +41,7 @@ object MojoFormatter {
   }
 
   def format(path: String,
+             sourceEncoding: String,
              log: Log,
              alignParameters: Boolean,
              alignSingleLineCaseStatements: Boolean,
@@ -87,14 +88,16 @@ object MojoFormatter {
 
     val files = findScalaFiles(path)
 
+    val sourceCodec = Option(sourceEncoding).map(Codec.apply)
+
     var count = 0
 
     files.foreach { file ⇒
       try {
-        val original = Source.fromFile(file).mkString
+        val original = Source.fromFile(file)(sourceCodec getOrElse implicitly[Codec]).mkString
         val formatted = ScalaFormatter.format(original, preferences)
         if (original != formatted) {
-          writeText(file, formatted)
+          writeText(file, formatted, sourceCodec map (_.name))
           count += 1
         }
       } catch {