diff --git a/ginfo.c b/ginfo.c
index aa03bc30b..86e2ed687 100644
--- a/ginfo.c
+++ b/ginfo.c
@@ -1846,11 +1846,11 @@ g_union_info_find_method (GIUnionInfo *info,
   gint offset;
   GIBaseInfo *base = (GIBaseInfo *)info;
   Header *header = (Header *)base->typelib->data;
-  StructBlob *blob = (UnionBlob *)&base->typelib->data[base->offset];
+  UnionBlob *blob = (UnionBlob *)&base->typelib->data[base->offset];
 
   offset = base->offset + header->union_blob_size
     + blob->n_fields * header->field_blob_size;
 
-  return find_method (base, offset, blob->n_methods, name);
+  return find_method (base, offset, blob->n_functions, name);
 }