diff --git a/src/main/java/seedu/address/logic/commands/cca/CcaEnrolCommand.java b/src/main/java/seedu/address/logic/commands/cca/CcaEnrolCommand.java
index abe8554dd0a..ee225936f93 100644
--- a/src/main/java/seedu/address/logic/commands/cca/CcaEnrolCommand.java
+++ b/src/main/java/seedu/address/logic/commands/cca/CcaEnrolCommand.java
@@ -72,6 +72,8 @@ public CommandResult execute(Model model) throws CommandException {
 
         boolean success = model.enrolPersonIntoCca(ccaToEnrolInto, personToEnrol);
         if (success) {
+            model.setCca(ccaToEnrolInto, ccaToEnrolInto);
+            model.updateFilteredCcaList(Model.PREDICATE_SHOW_ALL_CCAS);
             return new CommandResult(String.format(MESSAGE_SUCCESS, personToEnrol.getName(), ccaToEnrolInto.getName()));
         } else {
             throw new CommandException(
diff --git a/src/main/java/seedu/address/logic/commands/cca/CcaExpelCommand.java b/src/main/java/seedu/address/logic/commands/cca/CcaExpelCommand.java
index 83aff504a81..ccfc0c28ee4 100644
--- a/src/main/java/seedu/address/logic/commands/cca/CcaExpelCommand.java
+++ b/src/main/java/seedu/address/logic/commands/cca/CcaExpelCommand.java
@@ -16,6 +16,7 @@
 import seedu.address.model.person.Person;
 
 public class CcaExpelCommand extends Command {
+
     public static final String COMMAND_WORD = "expel";
 
     public static final String MESSAGE_USAGE = COMMAND_WORD + ": Expels a person from a CCA. "
@@ -71,6 +72,8 @@ public CommandResult execute(Model model) throws CommandException {
 
         boolean success = model.expelPersonFromCca(ccaToExpelFrom, personToExpel);
         if (success) {
+            model.setCca(ccaToExpelFrom, ccaToExpelFrom);
+            model.updateFilteredCcaList(Model.PREDICATE_SHOW_ALL_CCAS);
             return new CommandResult(String.format(MESSAGE_SUCCESS, personToExpel.getName(), ccaToExpelFrom.getName()));
         } else {
             throw new CommandException(
diff --git a/src/main/java/seedu/address/model/cca/Cca.java b/src/main/java/seedu/address/model/cca/Cca.java
index e6e2dca4119..c2048e873b8 100644
--- a/src/main/java/seedu/address/model/cca/Cca.java
+++ b/src/main/java/seedu/address/model/cca/Cca.java
@@ -49,6 +49,14 @@ public Set<Person> getPersonArrayList() {
         return personArrayList;
     }
 
+    /**
+     * Returns the number of people in this CCA.
+     * @return the number of members of this CCA
+     */
+    public int getNumberOfMembers() {
+        return personArrayList.size();
+    }
+
     /**
      * Returns the cid of this CCA.
      * @return the cid of this CCA
diff --git a/src/main/java/seedu/address/ui/CcaCard.java b/src/main/java/seedu/address/ui/CcaCard.java
index 6a855ff2adf..0987c001c78 100644
--- a/src/main/java/seedu/address/ui/CcaCard.java
+++ b/src/main/java/seedu/address/ui/CcaCard.java
@@ -49,7 +49,7 @@ public CcaCard(Cca cca, int displayedIndex) {
         this.cca = cca;
         id.setText(displayedIndex + ". ");
         this.name.setText(cca.getName().fullName);
-        this.numPeople.setText("No. of people: 3");
+        this.numPeople.setText("No. of people: " + cca.getNumberOfMembers());
 
         // can consider having tags for CCAs
         Label tempLabel = new Label("Music");
diff --git a/src/main/java/seedu/address/ui/CcaListPanel.java b/src/main/java/seedu/address/ui/CcaListPanel.java
index 35e459df550..80b294c2777 100644
--- a/src/main/java/seedu/address/ui/CcaListPanel.java
+++ b/src/main/java/seedu/address/ui/CcaListPanel.java
@@ -10,6 +10,9 @@
 import seedu.address.commons.core.LogsCenter;
 import seedu.address.model.cca.Cca;
 
+/**
+ * Panel containing the list of CCAs.
+ */
 public class CcaListPanel extends UiPart<Region> {
     private static final String FXML = "CcaListPanel.fxml";
     private final Logger logger = LogsCenter.getLogger(CcaListPanel.class);