diff --git a/pages/common/qemu-img.md b/pages/common/qemu-img.md
index 3ace2db42..9896b16a9 100644
--- a/pages/common/qemu-img.md
+++ b/pages/common/qemu-img.md
@@ -21,4 +21,4 @@
 
 - Convert a VMware .vmdk disk image to a KVM .qcow2 disk image:
 
-`qemu-img convert -O qcow2 {{path/to/file/foo.vmdk}} {{path/to/file/foo.qcow2}}`
+`qemu-img convert -f {{vmdk}} -O {{qcow2}} {{path/to/file/foo.vmdk}} {{path/to/file/foo.qcow2}}`