diff --git a/bundles/org.eclipse.equinox.p2.ui/src/org/eclipse/equinox/internal/p2/ui/ProvUIMessages.java b/bundles/org.eclipse.equinox.p2.ui/src/org/eclipse/equinox/internal/p2/ui/ProvUIMessages.java
index 67d80b0..6ab19e2 100644
--- a/bundles/org.eclipse.equinox.p2.ui/src/org/eclipse/equinox/internal/p2/ui/ProvUIMessages.java
+++ b/bundles/org.eclipse.equinox.p2.ui/src/org/eclipse/equinox/internal/p2/ui/ProvUIMessages.java
@@ -266,6 +266,7 @@
 
 	public static String TrustCertificateDialog_Details;
 	public static String TrustCertificateDialog_Title;
+	public static String TrustCertificateDialog_AcceptSelectedButtonLabel;
 	// Operations
 	public static String UpdateManagerCompatibility_ExportSitesTitle;
 	public static String UpdateManagerCompatibility_ImportSitesTitle;
diff --git a/bundles/org.eclipse.equinox.p2.ui/src/org/eclipse/equinox/internal/p2/ui/dialogs/TrustCertificateDialog.java b/bundles/org.eclipse.equinox.p2.ui/src/org/eclipse/equinox/internal/p2/ui/dialogs/TrustCertificateDialog.java
index 7c36e5a..52fe9e7 100644
--- a/bundles/org.eclipse.equinox.p2.ui/src/org/eclipse/equinox/internal/p2/ui/dialogs/TrustCertificateDialog.java
+++ b/bundles/org.eclipse.equinox.p2.ui/src/org/eclipse/equinox/internal/p2/ui/dialogs/TrustCertificateDialog.java
@@ -14,6 +14,7 @@
 import org.eclipse.equinox.internal.p2.ui.ProvUIMessages;
 import org.eclipse.equinox.internal.p2.ui.viewers.CertificateLabelProvider;
 import org.eclipse.equinox.internal.provisional.security.ui.X509CertificateViewDialog;
+import org.eclipse.jface.dialogs.IDialogConstants;
 import org.eclipse.jface.viewers.*;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.SelectionEvent;
@@ -61,6 +62,12 @@
 	}
 
 	@Override
+	protected void createButtonsForButtonBar(Composite parent) {
+		createButton(parent, IDialogConstants.OK_ID, ProvUIMessages.TrustCertificateDialog_AcceptSelectedButtonLabel, true);
+		createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false);
+	}
+
+	@Override
 	protected Control createDialogArea(Composite parent) {
 		Composite composite = (Composite) super.createDialogArea(parent);
 		certificateChainViewer = new TreeViewer(composite, SWT.BORDER);
diff --git a/bundles/org.eclipse.equinox.p2.ui/src/org/eclipse/equinox/internal/p2/ui/messages.properties b/bundles/org.eclipse.equinox.p2.ui/src/org/eclipse/equinox/internal/p2/ui/messages.properties
index 1f68f4e..d6bc996 100644
--- a/bundles/org.eclipse.equinox.p2.ui/src/org/eclipse/equinox/internal/p2/ui/messages.properties
+++ b/bundles/org.eclipse.equinox.p2.ui/src/org/eclipse/equinox/internal/p2/ui/messages.properties
@@ -273,3 +273,4 @@
 RollbackProfileElement_CurrentInstallation=Current Installation
 TrustCertificateDialog_Details=Details
 TrustCertificateDialog_Title=Do you trust these certificates?
+TrustCertificateDialog_AcceptSelectedButtonLabel=&Accept selected