diff --git a/build.gradle.kts b/build.gradle.kts
index 1d34cd0..d7dc1fb 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -90,7 +90,7 @@ val detagMain = tasks.register<JavaExec>("detagMain") {
     classpath = detag
     mainClass.set("com.r35157.tools.detag.impl.ref.Main")
 
-    val configFile = layout.projectDirectory.file("../detag.conf")
+    val configFile = layout.projectDirectory.file("conf/detag.conf")
     val sourceRoot = layout.projectDirectory.dir("src/main/tjava")
 
     inputs.file(configFile)