```
diff --git a/core/src/main/java/org/jruby/runtime/Helpers.java b/core/src/main/java/org/jruby/runtime/Helpers.java
index 3f07730aca..8bdb6ab818 100644
--- a/core/src/main/java/org/jruby/runtime/Helpers.java
+++ b/core/src/main/java/org/jruby/runtime/Helpers.java
@@ -1756,7 +1756,8 @@ public class Helpers {
                 + scope.getFile() + ';'
                 + Arrays.stream(scope.getVariables()).collect(Collectors.joining(",")) + ';'
                 + scope.getFirstKeywordIndex() + ";" +
-                + (signature == null ? Signature.NO_ARGUMENTS.encode() : signature.encode());
+                + (signature == null ? Signature.NO_ARGUMENTS.encode() : signature.encode()) + ";"
+                + scope.getIRScope().getScopeType().name();
 
         return descriptor;
     }
Stage this hunk [y,n,q,a,d,j,J,g,/,e,?]? y
@@ -1770,11 +1771,13 @@ public class Helpers {
         String[] varNames = bits[2].split(",");
         int kwIndex = Integer.parseInt(bits[3]);
         Signature signature = Signature.decode(Long.parseLong(bits[4]));
+        IRScopeType scopeType = IRScopeType.valueOf(bits[5]);
 
         StaticScope scope = StaticScopeFactory.newStaticScope(enclosingScope, type, varNames, kwIndex);
 
         scope.setSignature(signature);
         scope.setFile(file);
+        scope.setScopeType(scopeType);
 
         return scope;
     }
Stage this hunk [y,n,q,a,d,K,g,/,s,e,?]? y