diff --git a/forge-game/src/main/java/forge/game/GameActionUtil.java b/forge-game/src/main/java/forge/game/GameActionUtil.java
index e321a159155..89c1fbf91f6 100644
--- a/forge-game/src/main/java/forge/game/GameActionUtil.java
+++ b/forge-game/src/main/java/forge/game/GameActionUtil.java
@@ -339,7 +339,7 @@ public final class GameActionUtil {
             newSA.setMayPlay(o);
 
             final StringBuilder sb = new StringBuilder(sa.getDescription());
-            if (!source.equals(host)) {
+            if (!source.equals(host) && host.getCardForUi() != null) {
                 sb.append(" by ");
                 if (host.isImmutable() && host.getEffectSource() != null) {
                     sb.append(host.getEffectSource());