diff --git a/src/components/structures/GroupView.js b/src/components/structures/GroupView.js
index 21c503fbf1..26f8c4a413 100644
--- a/src/components/structures/GroupView.js
+++ b/src/components/structures/GroupView.js
@@ -448,8 +448,16 @@ export default React.createClass({
     _initGroupStore: function(groupId) {
         this._groupStore = GroupStoreCache.getGroupStore(MatrixClientPeg.get(), groupId);
         this._groupStore.on('update', () => {
+            const summary = this._groupStore.getSummary();
+            if (summary.profile) {
+                // Default profile fields should be "" for later sending to the server (which
+                // requires that the fields are strings, not null)
+                ["avatar_url", "long_description", "name", "short_description"].forEach((k) => {
+                    summary.profile[k] = summary.profile[k] || "";
+                });
+            }
             this.setState({
-                summary: this._groupStore.getSummary(),
+                summary,
                 isGroupPublicised: this._groupStore.getGroupPublicity(),
                 isUserPrivileged: this._groupStore.isUserPrivileged(),
                 error: null,
diff --git a/src/components/views/dialogs/AddressPickerDialog.js b/src/components/views/dialogs/AddressPickerDialog.js
index 2637f9d466..8c6f033bdc 100644
--- a/src/components/views/dialogs/AddressPickerDialog.js
+++ b/src/components/views/dialogs/AddressPickerDialog.js
@@ -489,7 +489,12 @@ module.exports = React.createClass({
             const AddressTile = sdk.getComponent("elements.AddressTile");
             for (let i = 0; i < this.state.userList.length; i++) {
                 query.push(
-                    <AddressTile key={i} address={this.state.userList[i]} canDismiss={true} onDismissed={this.onDismissed(i)} />,
+                    <AddressTile
+                        key={i}
+                        address={this.state.userList[i]}
+                        canDismiss={true}
+                        onDismissed={this.onDismissed(i)}
+                        showAddress={this.props.pickerType === 'user'} />,
                 );
             }
         }
@@ -539,6 +544,7 @@ module.exports = React.createClass({
             addressSelector = (
                 <AddressSelector ref={(ref) => {this.addressSelector = ref;}}
                     addressList={this.state.queryList}
+                    showAddress={this.props.pickerType === 'user'}
                     onSelected={this.onSelected}
                     truncateAt={TRUNCATE_QUERY_LIST}
                 />
diff --git a/src/components/views/elements/AddressSelector.js b/src/components/views/elements/AddressSelector.js
index 9a8cd34867..9330206a39 100644
--- a/src/components/views/elements/AddressSelector.js
+++ b/src/components/views/elements/AddressSelector.js
@@ -30,6 +30,8 @@ export default React.createClass({
 
         // List of the addresses to display
         addressList: React.PropTypes.arrayOf(UserAddressType).isRequired,
+        // Whether to show the address on the address tiles
+        showAddress: React.PropTypes.bool,
         truncateAt: React.PropTypes.number.isRequired,
         selected: React.PropTypes.number,
 
@@ -142,7 +144,13 @@ export default React.createClass({
                         key={this.props.addressList[i].addressType + "/" + this.props.addressList[i].address}
                         ref={(ref) => { this.addressListElement = ref; }}
                     >
-                        <AddressTile address={this.props.addressList[i]} justified={true} networkName="vector" networkUrl="img/search-icon-vector.svg" />
+                        <AddressTile
+                            address={this.props.addressList[i]}
+                            showAddress={this.props.showAddress}
+                            justified={true}
+                            networkName="vector"
+                            networkUrl="img/search-icon-vector.svg"
+                        />
                     </div>,
                 );
             }
diff --git a/src/components/views/elements/AddressTile.js b/src/components/views/elements/AddressTile.js
index a61cbbc794..c8ea4062b1 100644
--- a/src/components/views/elements/AddressTile.js
+++ b/src/components/views/elements/AddressTile.js
@@ -87,7 +87,10 @@ export default React.createClass({
             info = (
                 <div className="mx_AddressTile_mx">
                     <div className={nameClasses}>{ name }</div>
-                    <div className={idClasses}>{ address.address }</div>
+                    { this.props.showAddress ?
+                        <div className={idClasses}>{ address.address }</div> :
+                        <div />
+                    }
                 </div>
             );
         } else if (isMatrixAddress) {