diff --git a/src/main/java/org/asamk/Signal.java b/src/main/java/org/asamk/Signal.java
index 7dc1e92c..8eff0510 100644
--- a/src/main/java/org/asamk/Signal.java
+++ b/src/main/java/org/asamk/Signal.java
@@ -79,6 +79,8 @@ public interface Signal extends DBusInterface {
 
     void setContactName(String number, String name) throws Error.InvalidNumber;
 
+    void setExpirationTimer(final String number, final int expiration) throws Error.InvalidNumber;
+
     void setContactBlocked(String number, boolean blocked) throws Error.InvalidNumber;
 
     void setGroupBlocked(byte[] groupId, boolean blocked) throws Error.GroupNotFound;
diff --git a/src/main/java/org/asamk/signal/dbus/DbusSignalImpl.java b/src/main/java/org/asamk/signal/dbus/DbusSignalImpl.java
index 54085b11..180610e9 100644
--- a/src/main/java/org/asamk/signal/dbus/DbusSignalImpl.java
+++ b/src/main/java/org/asamk/signal/dbus/DbusSignalImpl.java
@@ -397,6 +397,17 @@ public class DbusSignalImpl implements Signal {
         }
     }
 
+    @Override
+    public void setExpirationTimer(final String number, final int expiration) {
+        try {
+            m.setExpirationTimer(number, expiration);
+        } catch (IOException e) {
+            throw new Error.Failure(e.getMessage());
+        } catch (InvalidNumberException e) {
+            throw new Error.InvalidNumber(e.getMessage());
+        }
+    }
+
     @Override
     public void setContactBlocked(final String number, final boolean blocked) {
         try {