diff --git a/buildSrc/build.gradle.kts b/buildSrc/build.gradle.kts
index 3b182eca1..f0b6737ce 100644
--- a/buildSrc/build.gradle.kts
+++ b/buildSrc/build.gradle.kts
@@ -17,6 +17,10 @@ java {
     targetCompatibility = JavaVersion.VERSION_17
 }
 
+tasks.withType<JavaCompile> {
+    options.encoding = "UTF-8"
+}
+
 tasks.processResources {
     into("org/jackhuang/hmcl/gradle/l10n") {
         from(projectDir.resolve("../HMCLCore/src/main/resources/assets/lang/"))