diff --git a/tasks/mm0/include/vm_area.h b/tasks/mm0/include/vm_area.h
index aa43a1b..7f8a225 100644
--- a/tasks/mm0/include/vm_area.h
+++ b/tasks/mm0/include/vm_area.h
@@ -14,7 +14,7 @@
 #include <arch/mm.h>
 #include <lib/spinlock.h>
 
-//#define DEBUG_FAULT_HANDLING
+#define DEBUG_FAULT_HANDLING
 #ifdef DEBUG_FAULT_HANDLING
 #define dprintf(...)	printf(__VA_ARGS__)
 #else
diff --git a/tasks/mm0/src/shm.c b/tasks/mm0/src/shm.c
index 1676791..d0efab7 100644
--- a/tasks/mm0/src/shm.c
+++ b/tasks/mm0/src/shm.c
@@ -195,7 +195,7 @@ static struct vm_file *shm_new(key_t key, unsigned long npages)
 
 	/* Initialise the vm object */
 	shm_file->vm_obj.pager = &swap_pager;
-	shm_file->vm_obj.flags = VM_OBJ_FILE;
+	shm_file->vm_obj.flags = VM_OBJ_FILE | VM_WRITE;
 
 	list_add(&shm_file->list, &shm_file_list);
 	list_add(&shm_file->vm_obj.list, &vm_object_list);
diff --git a/tasks/mm0/src/vm_object.c b/tasks/mm0/src/vm_object.c
index 47af0e9..d80eb8d 100644
--- a/tasks/mm0/src/vm_object.c
+++ b/tasks/mm0/src/vm_object.c
@@ -32,10 +32,20 @@ void vm_object_print(struct vm_object *vmo)
 	       vmo->npages);
 	if (vmo->flags & VM_OBJ_FILE) {
 		f = vm_object_to_file(vmo);
-		printf("File type: %s\n",
-		       (f->type == VM_FILE_DEVZERO) ? "devzero" :
-		       ((f->type == VM_FILE_BOOTFILE) ? "bootfile" : "regular"));
-		// printf("File type: 0x%x\n", f->type);
+		char *ftype;
+
+		if (f->type == VM_FILE_DEVZERO)
+			ftype = "devzero";
+		else if (f->type == VM_FILE_BOOTFILE)
+			ftype = "bootfile";
+		else if (f->type == VM_FILE_SHM)
+			ftype = "shm file";
+		else if (f->type == VM_FILE_REGULAR)
+			ftype = "regular";
+		else
+			BUG();
+
+		printf("File type: %s\n", ftype);
 	}
 	print_cache_pages(vmo);
 	printf("\n");