diff --git a/leshan-integration-tests/src/test/java/org/eclipse/leshan/integration/tests/server/redis/RedisRegistrationStoreTest.java b/leshan-integration-tests/src/test/java/org/eclipse/leshan/integration/tests/server/redis/RedisRegistrationStoreTest.java
index 66ab19efe1..5fc52362f5 100644
--- a/leshan-integration-tests/src/test/java/org/eclipse/leshan/integration/tests/server/redis/RedisRegistrationStoreTest.java
+++ b/leshan-integration-tests/src/test/java/org/eclipse/leshan/integration/tests/server/redis/RedisRegistrationStoreTest.java
@@ -18,6 +18,7 @@
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertTrue;
 
 import java.net.InetAddress;
@@ -159,6 +160,24 @@ public void get_composite_observation_from_request() {
         assertEquals(examplePaths, observation.getPaths());
     }
 
+    @Test
+    public void remove_observation() {
+        // given
+        givenASimpleRegistration(lifetime);
+        store.addRegistration(registration);
+
+        org.eclipse.californium.core.observe.Observation observationToStore = prepareCoapObservationOnSingle("/1/2/3");
+        observationStore.put(aToken, observationToStore);
+
+        // when
+        observationStore.remove(aToken);
+
+        // then
+        Observation leshanObservation = store.getObservation(registrationId,
+                new ObservationIdentifier(aToken.getBytes()));
+        assertNull(leshanObservation);
+    }
+
     private void givenASimpleRegistration(Long lifetime) {
         Registration.Builder builder = new Registration.Builder(registrationId, ep, Identity.unsecure(address, port),
                 EndpointUriUtil.createUri("coap://localhost:5683"));
diff --git a/leshan-server-cf/src/test/java/org/eclipse/leshan/server/californium/observation/LwM2mObservationStoreTest.java b/leshan-server-cf/src/test/java/org/eclipse/leshan/server/californium/observation/LwM2mObservationStoreTest.java
index 436ee97bcc..a2d30956aa 100644
--- a/leshan-server-cf/src/test/java/org/eclipse/leshan/server/californium/observation/LwM2mObservationStoreTest.java
+++ b/leshan-server-cf/src/test/java/org/eclipse/leshan/server/californium/observation/LwM2mObservationStoreTest.java
@@ -17,6 +17,7 @@
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertTrue;
 
 import java.net.InetAddress;
@@ -159,6 +160,24 @@ public void get_composite_observation_from_request() {
         assertEquals(examplePaths, observation.getPaths());
     }
 
+    @Test
+    public void remove_observation() {
+        // given
+        givenASimpleRegistration(lifetime);
+        store.addRegistration(registration);
+
+        org.eclipse.californium.core.observe.Observation observationToStore = prepareCoapCompositeObservation();
+        observationStore.put(exampleToken, observationToStore);
+
+        // when
+        observationStore.remove(exampleToken);
+
+        // then
+        Observation leshanObservation = store.getObservation(registrationId,
+                new ObservationIdentifier(exampleToken.getBytes()));
+        assertNull(leshanObservation);
+    }
+
     private org.eclipse.californium.core.observe.Observation prepareCoapObservation() {
         ObserveRequest observeRequest = new ObserveRequest(null, examplePath);