diff --git a/src/coreclr/nativeaot/System.Private.Reflection.Execution/src/Internal/Reflection/Execution/ExecutionEnvironmentImplementation.MappingTables.cs b/src/coreclr/nativeaot/System.Private.Reflection.Execution/src/Internal/Reflection/Execution/ExecutionEnvironmentImplementation.MappingTables.cs
index df28255b46025d..45446ed7d8a73a 100644
--- a/src/coreclr/nativeaot/System.Private.Reflection.Execution/src/Internal/Reflection/Execution/ExecutionEnvironmentImplementation.MappingTables.cs
+++ b/src/coreclr/nativeaot/System.Private.Reflection.Execution/src/Internal/Reflection/Execution/ExecutionEnvironmentImplementation.MappingTables.cs
@@ -924,6 +924,7 @@ private unsafe bool TryGetMethodForOriginalLdFtnResult_InvokeMap_Inner(NativeFor
             }
             else
             {
+#if FEATURE_SHARED_LIBRARY
                 uint nameAndSigOffset = entryMethodHandleOrNameAndSigRaw;
                 MethodNameAndSignature nameAndSig;
                 if (!TypeLoaderEnvironment.Instance.TryGetMethodNameAndSignatureFromNativeLayoutOffset(mappingTableModule.Handle, nameAndSigOffset, out nameAndSig))
@@ -937,6 +938,9 @@ private unsafe bool TryGetMethodForOriginalLdFtnResult_InvokeMap_Inner(NativeFor
                     Debug.Assert(false);
                     return false;
                 }
+#else
+                throw NotImplemented.ByDesign;
+#endif
             }
 
             return true;