diff --git a/blog/2017-01-07-crossgrading.mdwn b/blog/2017-01-07-crossgrading.mdwn
index a2e4824..8b5e720 100644
--- a/blog/2017-01-07-crossgrading.mdwn
+++ b/blog/2017-01-07-crossgrading.mdwn
@@ -22,9 +22,9 @@ created 32 and 64 bit base.tgz archives:
     pbuilder --create --basetgz /var/cache/pbuilder/powerpc.tgz
     pbuilder --create --basetgz /var/cache/pbuilder/ppc64.tgz \
         --architecture ppc64 \
-	--mirror http://ftp.ports.debian.org/debian-ports \
-	--debootstrapopts --keyring=/usr/share/keyrings/debian-ports-archive-keyring.gpg \
-	--debootstrapopts --include=debian-ports-archive-keyring
+        --mirror http://ftp.ports.debian.org/debian-ports \
+        --debootstrapopts --keyring=/usr/share/keyrings/debian-ports-archive-keyring.gpg \
+        --debootstrapopts --include=debian-ports-archive-keyring
 
 # Step 2: Gradually Heat the Water so the Frog Doesn't Notice