diff --git a/README.md b/README.md
index 771af736..56c703b8 100644
--- a/README.md
+++ b/README.md
@@ -85,10 +85,11 @@ Requirements
 If you have 4GB of available physical RAM\*, or more, diskimage-builder will
 create a tmpfs mount to build the image in. This will improve image build time
 by building in RAM. This can be disabled completely by passing --no-tmpfs to
-disk-image-create. ramdisk-image-create does not use a tmpfs mount. If tmpfs
-is not used, you will need enough room in /tmp to store two uncompressed
-cloud images. If you do have tmpfs, you will still need /tmp space for one
-uncompressed cloud image and about 20% of that for working files.
+disk-image-create. ramdisk-image-create builds a regular image and then within
+that does ramdisk creation. If tmpfs is not used, you will need enough room in
+/tmp to store two uncompressed cloud images. If you do have tmpfs, you will
+still need /tmp space for one uncompressed cloud image and about 20% of that
+for working files.
 
 \* As reported by /proc/meminfo MemTotal