1 files changed, 6 insertions, 2 deletions
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyTrustFragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyTrustFragment.java
index b62806cc7..a15ec4151 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyTrustFragment.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyTrustFragment.java
@@ -269,8 +269,12 @@ public class ViewKeyTrustFragment extends LoaderFragment implements
         private SpannableStringBuilder insertLinks(SpannableStringBuilder proofLinks,String proofType){
             SpannableStringBuilder ssb = new SpannableStringBuilder();
             ssb.append(proofType);
-            int i = proofType.indexOf("%s");
-            ssb.replace(i,i+2,proofLinks);
+            if(proofType.contains("%s")){
+                int i = proofType.indexOf("%s");
+                ssb.replace(i,i+2,proofLinks);
+            }
+            else ssb.append(proofLinks);
+
             return ssb;
         }