1 files changed, 2 insertions, 1 deletions
diff --git a/src/main/java/org/shedlang/compiler/backends/wasm/PatioToWasm.java b/src/main/java/org/shedlang/compiler/backends/wasm/PatioToWasm.java
index fd4e7345..27392a0c 100644
--- a/src/main/java/org/shedlang/compiler/backends/wasm/PatioToWasm.java
+++ b/src/main/java/org/shedlang/compiler/backends/wasm/PatioToWasm.java
@@ -50,7 +50,8 @@ public class PatioToWasm {
                     ).memory();
                 }
                 case PatioDataElementMutableDeclaration patioDataElementMutableDeclaration -> {
-                    throw new UnsupportedOperationException("TODO");
+                    // TODO: how to test this?
+                    module = module.addUndefinedDataElement(patioDataElementMutableDeclaration.name());
                 }
                 case PatioDataElementMutableDefinition patioDataElementMutableDefinition -> {
                     wasmMemoryBuilder = wasmMemoryBuilder.add(