diff --git a/test/units/testsuite-58.sh b/test/units/testsuite-58.sh
index 2b0fe7dfb2..d63537f840 100755
--- a/test/units/testsuite-58.sh
+++ b/test/units/testsuite-58.sh
@@ -911,7 +911,7 @@ test_minimize() {
 Type=root-${architecture}
 Format=${format}
 CopyFiles=${defs}
-Minimize=yes
+Minimize=guess
 EOF
     done
 
@@ -921,7 +921,7 @@ EOF
 Type=root-${architecture}
 Format=squashfs
 CopyFiles=${defs}
-Minimize=yes
+Minimize=best
 EOF
     fi