diff --git a/src/main/java/appeng/services/version/VersionCheckerConfig.java b/src/main/java/appeng/services/version/VersionCheckerConfig.java
index 0dbb9427..a299b840 100644
--- a/src/main/java/appeng/services/version/VersionCheckerConfig.java
+++ b/src/main/java/appeng/services/version/VersionCheckerConfig.java
@@ -59,7 +59,7 @@ public final class VersionCheckerConfig
 	public VersionCheckerConfig( @Nonnull final File file )
 	{
 		Preconditions.checkNotNull( file );
-		Preconditions.checkState( file.isFile() );
+		Preconditions.checkState( !file.isDirectory() );
 
 		this.config = new Configuration( file );