diff --git a/src/main/java/org/whispersystems/textsecuregcm/entities/AccountAttributes.java b/src/main/java/org/whispersystems/textsecuregcm/entities/AccountAttributes.java
index e598b060a..4f5911fe7 100644
--- a/src/main/java/org/whispersystems/textsecuregcm/entities/AccountAttributes.java
+++ b/src/main/java/org/whispersystems/textsecuregcm/entities/AccountAttributes.java
@@ -24,7 +24,6 @@ import org.hibernate.validator.constraints.NotEmpty;
 public class AccountAttributes {
 
   @JsonProperty
-  @NotEmpty
   private String signalingKey;
 
   @JsonProperty