diff --git a/tasks/install-clamav.yml b/tasks/install-clamav.yml
index df32d637e4b858ce58d27d5065ddf18af9a13321..1ea310d180a32144ad7f293fc4657ae681957b4a 100644
--- a/tasks/install-clamav.yml
+++ b/tasks/install-clamav.yml
@@ -125,7 +125,7 @@
       TCPSocket 3310
       TCPAddr 127.0.0.1
       MaxConnectionQueueLength 200
-      StreamMaxLength 4000K
+      StreamMaxLength 4000M
       # AllowSupplementaryGroups yes            # DEPRECATED
       ScanPE yes
       ScanELF yes