diff --git a/spark.spec b/spark.spec
index 3cd3c1b..aa5b30a 100644
--- a/spark.spec
+++ b/spark.spec
@@ -138,6 +138,9 @@ Javadoc for %{name}.
 %patch7 -p1
 %patch8 -p1
 
+# don't use shaded ASM
+sed -i -e 's|com[.]esotericsoftware[.]reflectasm[.]shaded[.]||' ./core/src/main/scala/org/apache/spark/util/ClosureCleaner.scala
+
 sed -i -e 's/\(val [A-Z]\+_JVM_VERSION =[^1]\+\)1.6"/\11.7"/' project/SparkBuild.scala
 
 # replace Colt with Lancer