diff --git a/lib/src/main/java/org/asamk/signal/manager/helper/SendHelper.java b/lib/src/main/java/org/asamk/signal/manager/helper/SendHelper.java
index 36c4f0d5..666867fe 100644
--- a/lib/src/main/java/org/asamk/signal/manager/helper/SendHelper.java
+++ b/lib/src/main/java/org/asamk/signal/manager/helper/SendHelper.java
@@ -617,6 +617,13 @@ public class SendHelper {
         } catch (NotFoundException e) {
             logger.warn("Someone was unregistered. Falling back to legacy sends.", e);
             return null;
+        } catch (IOException e) {
+            if (e.getCause() instanceof InvalidKeyException) {
+                logger.warn("Invalid key. Falling back to legacy sends.", e);
+                return null;
+            } else {
+                throw e;
+            }
         }
     }