diff --git a/src/webassembly/instance.rs b/src/webassembly/instance.rs
index a7cf4e643..4238b9715 100644
--- a/src/webassembly/instance.rs
+++ b/src/webassembly/instance.rs
@@ -67,6 +67,7 @@ fn get_function_addr(
 ///      first field
 #[repr(C)]
 #[derive(Debug)]
+#[repr(C)]
 pub struct Instance {
     // C-like pointers to data (heaps, globals, tables)
     pub data_pointers: DataPointers,
@@ -99,6 +100,7 @@ pub struct Instance {
 /// NOTE: Rearranging the fields will break the memory arrangement model
 #[repr(C)]
 #[derive(Debug)]
+#[repr(C)]
 pub struct DataPointers {
     // Pointer to tables
     pub tables: TablesSlice,
diff --git a/src/webassembly/module.rs b/src/webassembly/module.rs
index acc91a339..f48506872 100644
--- a/src/webassembly/module.rs
+++ b/src/webassembly/module.rs
@@ -489,6 +489,7 @@ impl<'environment> FuncEnvironmentTrait for FuncEnvironment<'environment> {
             .special_param(ir::ArgumentPurpose::VMContext)
             .expect("Missing vmctx parameter");
 
+
         // The `callee` value is an index into a table of function pointers.
         // Apparently, that table is stored at absolute address 0 in this dummy environment.
         // TODO: Generate bounds checking code.
@@ -537,6 +538,9 @@ impl<'environment> FuncEnvironmentTrait for FuncEnvironment<'environment> {
             .special_param(ir::ArgumentPurpose::VMContext)
             .expect("Missing vmctx parameter");
 
+        // println!("POINTER BYTES {}", self.pointer_bytes());
+        // println!("POINTER SIZE {}", self.ptr_size());
+
         // Build a value list for the call instruction containing the call_args and the vmctx
         // parameter.
         let mut args = ir::ValueList::default();