diff --git a/xpcom/analysis/static-init.js b/xpcom/analysis/static-init.js
index 3dc296cb9b09..1816d0548541 100644
--- a/xpcom/analysis/static-init.js
+++ b/xpcom/analysis/static-init.js
@@ -50,5 +50,5 @@ function pretty_func(fn) {
 }
 
 function pretty_var(v) {
-  return type_string(TREE_TYPE(v)) + " " + decl_name_string(v);
+  return type_string(TREE_TYPE(v)) + " " + expr_display(v);
 }