diff --git a/apache-commons-lang3.spec b/apache-commons-lang3.spec
index f4eaf2a..59ec1ab 100644
--- a/apache-commons-lang3.spec
+++ b/apache-commons-lang3.spec
@@ -48,6 +48,7 @@ Conflicts:      %{full_name}-bootstrap
 Provides:       %{short_name} = %{version}-%{release}
 Obsoletes:      %{full_name}-bootstrap
 %endif
+#!BuildIgnore:  bcel xalan-j2 xerces-j2
 
 %description
 The standard Java libraries fail to provide enough methods for