2 files changed, 2 insertions, 1 deletions
diff --git a/src/Execution/Runtime.php b/src/Execution/Runtime.php
index 58e2169..5107c3d 100644
--- a/src/Execution/Runtime.php
+++ b/src/Execution/Runtime.php
@@ -2357,7 +2357,7 @@ final class Runtime
         }
         $r = $tab->elem[$i];
         if ($r instanceof Refs\RefNull) {
-            throw new TrapException("call_indirect: ref.null");
+            throw new TrapException("call_indirect: ref.null", trapKind: TrapKind::UninitializedElement);
         }
         assert($r instanceof Refs\RefFunc);
         $a = $r->addr;
diff --git a/src/Execution/TrapKind.php b/src/Execution/TrapKind.php
index b1c00ef..ac1c4dd 100644
--- a/src/Execution/TrapKind.php
+++ b/src/Execution/TrapKind.php
@@ -9,4 +9,5 @@ enum TrapKind
     case Unknown;
     case OutOfBoundsMemoryAccess;
     case OutOfBoundsTableAccess;
+    case UninitializedElement;
 }