diff --git a/apache-commons-codec.spec b/apache-commons-codec.spec
index 59c14eb..933c199 100644
--- a/apache-commons-codec.spec
+++ b/apache-commons-codec.spec
@@ -39,9 +39,6 @@ sed -i 's/\r//' RELEASE-NOTES*.txt LICENSE.txt NOTICE.txt
 %mvn_alias : commons-codec:commons-codec
 
 %build
-# Avoid running out of heap on s390x during test suite execution
-export MAVEN_OPTS="-Xmx1024m"
-
 %mvn_build -- -Dcommons.osgi.symbolicName=org.apache.commons.codec
 
 %install