diff --git a/java_cup.spec b/java_cup.spec
index e7ec1d1..58cfa00 100644
--- a/java_cup.spec
+++ b/java_cup.spec
@@ -80,7 +80,7 @@ Documentation for java_cup.
 cp %{SOURCE1} pom.xml
 
 # remove all binary files
-find . -name "*.class" -exec rm -f {} \;
+find -name "*.class" -delete
 
 %if ! %{with_bootstrap}
 # remove prebuilt JFlex
@@ -96,7 +96,7 @@ export CLASSPATH=$(build-classpath java_cup java_cup-runtime jflex)
 %endif
 
 ant
-find . -name parser.cup -exec rm {} \;
+find -name parser.cup -delete
 ant javadoc
 
 %install