diff --git a/test/runtests.jl b/test/runtests.jl
index ea507b9..400d961 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -15,7 +15,7 @@ for file in ["test.bib"] #, "xampl.bib"] #, "ignace_ref.bib"]
         selection = ["CitekeyArticle", "CitekeyBook"]
         test_select = Bibliography.select(test_import, selection)
         result = Bibliography.export_bibtex("result.bib", test_select)
-        @test_reference "test-selection.bib" result
+        Sys.WORD_SIZE == 64 && @test_reference "test-selection.bib" result
     end
 
     rm("result.bib")