diff --git a/src/main/java/fr/imirhil/april/hebdobot/IndividualTopic.java b/src/main/java/fr/imirhil/april/hebdobot/IndividualTopic.java
index e9c5a63..1cfe701 100644
--- a/src/main/java/fr/imirhil/april/hebdobot/IndividualTopic.java
+++ b/src/main/java/fr/imirhil/april/hebdobot/IndividualTopic.java
@@ -31,4 +31,8 @@ public class IndividualTopic extends Topic {
 	public List<Message> getMessages(final String author) {
 		return this.messages.get(author);
 	}
+
+	public boolean hasParticipant(final String participant) {
+		return this.messages.containsKey(participant);
+	}
 }
diff --git a/src/main/java/fr/imirhil/april/hebdobot/Meeting.java b/src/main/java/fr/imirhil/april/hebdobot/Meeting.java
index 75f01d4..8779641 100644
--- a/src/main/java/fr/imirhil/april/hebdobot/Meeting.java
+++ b/src/main/java/fr/imirhil/april/hebdobot/Meeting.java
@@ -56,11 +56,14 @@ public class Meeting {
 				buffer.append(getLine(
 						Meeting.USER_SERVICE.getRealName(participant), '-'));
 				for (final IndividualTopic topic : this.individualTopics) {
-					buffer.append("\n");
-					buffer.append(getTopic(topic));
-					buffer.append("\n");
-					for (final Message message : topic.getMessages(participant)) {
-						buffer.append("* " + message.getContent() + "\n");
+					if (topic.hasParticipant(participant)) {
+						buffer.append("\n");
+						buffer.append(getTopic(topic));
+						buffer.append("\n");
+						for (final Message message : topic
+								.getMessages(participant)) {
+							buffer.append("* " + message.getContent() + "\n");
+						}
 					}
 				}
 			}