diff --git a/gdx-jnigen/src/main/java/com/badlogic/gdx/jnigen/NativeCodeGenerator.java b/gdx-jnigen/src/main/java/com/badlogic/gdx/jnigen/NativeCodeGenerator.java
index 7ef5d0f2..8bb5373d 100644
--- a/gdx-jnigen/src/main/java/com/badlogic/gdx/jnigen/NativeCodeGenerator.java
+++ b/gdx-jnigen/src/main/java/com/badlogic/gdx/jnigen/NativeCodeGenerator.java
@@ -301,7 +301,7 @@ private String getNativeClassFileName (FileDescriptor file) {
 	private void generateHFiles (FileDescriptor file) throws Exception {
 		//Use temporary directory to prevent javac from creating class files somewhere we care about.
 		File tempClassFilesDirectory = Files.createTempDirectory("gdx-jnigen").toFile();
-		String command = "javac -classpath " + classpath + " -d " + tempClassFilesDirectory.getAbsolutePath() + " -h " + jniDir.path() + " " + file.path();
+		String command = "javac -Dfile.encoding=UTF-8 -classpath " + classpath + " -d " + tempClassFilesDirectory.getAbsolutePath() + " -h " + jniDir.path() + " " + file.path();
 		Process process = Runtime.getRuntime().exec(command);
 		process.waitFor();
 		if (process.exitValue() != 0) {