diff --git a/src/runtime/java/org/grammaticalframework/pgf/UnknownLiteralCallback.java b/src/runtime/java/org/grammaticalframework/pgf/UnknownLiteralCallback.java
index 1cd5806b6..140a07836 100644
--- a/src/runtime/java/org/grammaticalframework/pgf/UnknownLiteralCallback.java
+++ b/src/runtime/java/org/grammaticalframework/pgf/UnknownLiteralCallback.java
@@ -6,7 +6,7 @@ import java.util.Iterator;
 public class UnknownLiteralCallback implements LiteralCallback {
 	private Concr concr;
 
-	public UnknownLiteralCallback(PGF pgf, Concr concr) {
+	public UnknownLiteralCallback(Concr concr) {
 		this.concr = concr;
 	}
 
diff --git a/src/ui/android/src/org/grammaticalframework/ui/android/Translator.java b/src/ui/android/src/org/grammaticalframework/ui/android/Translator.java
index 82dcadf51..bd47f2cc7 100644
--- a/src/ui/android/src/org/grammaticalframework/ui/android/Translator.java
+++ b/src/ui/android/src/org/grammaticalframework/ui/android/Translator.java
@@ -12,6 +12,7 @@ import org.grammaticalframework.pgf.ExprProb;
 import org.grammaticalframework.pgf.FullFormEntry;
 import org.grammaticalframework.pgf.MorphoAnalysis;
 import org.grammaticalframework.pgf.NercLiteralCallback;
+import org.grammaticalframework.pgf.UnknownLiteralCallback;
 import org.grammaticalframework.pgf.PGF;
 import org.grammaticalframework.pgf.ParseError;