diff --git a/conf/base.config b/conf/base.config
index 78e0e04..378947a 100644
--- a/conf/base.config
+++ b/conf/base.config
@@ -79,7 +79,7 @@ process {
 
     withName: 'SAMTOOLS_SORMADUP' {
         cpus   = { log_increase_cpus(2, 6*task.attempt, 1, 2) }
-        memory = { check_max( 10.GB + 6.GB * Math.ceil( meta.read_count / 1000000000 ) * task.attempt, 'memory' ) }
+        memory = { check_max( 10.GB + 0.6.GB * Math.ceil( meta.read_count / 100000000 ) * task.attempt, 'memory' ) }
         time   = { check_max( 2.h * Math.ceil( meta.read_count / 100000000 ) * task.attempt / log_increase_cpus(2, 6*task.attempt, 1, 2), 'time' ) }
     }