diff --git a/diskimage_builder/elements/centos7/pre-install.d/01-set-centos-mirror b/diskimage_builder/elements/centos7/pre-install.d/01-set-centos-mirror
index 8e2007a9..8dd9b2d9 100755
--- a/diskimage_builder/elements/centos7/pre-install.d/01-set-centos-mirror
+++ b/diskimage_builder/elements/centos7/pre-install.d/01-set-centos-mirror
@@ -12,4 +12,4 @@ DIB_DISTRIBUTION_MIRROR=${DIB_DISTRIBUTION_MIRROR:-}
 
 # Only set the mirror for the Base, Extras and Updates repositories
 # The others arn't enabled and do not exist on all mirrors
-sed -e "s|^#baseurl=http://mirror.centos.org/centos|baseurl=$DIB_DISTRIBUTION_MIRROR|;/^mirrorlist=/d" -i /etc/yum.repos.d/CentOS-Base.repo
+sed -e "s|^#baseurl=http[s]*://mirror.centos.org/centos|baseurl=$DIB_DISTRIBUTION_MIRROR|;/^mirrorlist=/d" -i /etc/yum.repos.d/CentOS-Base.repo
diff --git a/diskimage_builder/elements/epel/pre-install.d/05-rpm-epel-release b/diskimage_builder/elements/epel/pre-install.d/05-rpm-epel-release
index a4eef6fc..5ea9a6bb 100755
--- a/diskimage_builder/elements/epel/pre-install.d/05-rpm-epel-release
+++ b/diskimage_builder/elements/epel/pre-install.d/05-rpm-epel-release
@@ -45,5 +45,5 @@ DIB_EPEL_MIRROR=${DIB_EPEL_MIRROR:-}
 [ -n "$DIB_EPEL_MIRROR" ] || exit 0
 
 # Set the EPEL mirror to use
-sed -e "s|^#baseurl=http://download.fedoraproject.org/pub/epel|baseurl=$DIB_EPEL_MIRROR|;/^mirrorlist=/d;/^metalink=/d" -i /etc/yum.repos.d/epel.repo
+sed -e "s|^#baseurl=http[s]*://download.fedoraproject.org/pub/epel|baseurl=$DIB_EPEL_MIRROR|;/^mirrorlist=/d;/^metalink=/d" -i /etc/yum.repos.d/epel.repo
 
diff --git a/diskimage_builder/elements/fedora/pre-install.d/01-set-fedora-mirror b/diskimage_builder/elements/fedora/pre-install.d/01-set-fedora-mirror
index c008e2e8..4c35d08e 100755
--- a/diskimage_builder/elements/fedora/pre-install.d/01-set-fedora-mirror
+++ b/diskimage_builder/elements/fedora/pre-install.d/01-set-fedora-mirror
@@ -19,5 +19,5 @@ if [[ ${DIB_RELEASE} -gt 27 ]]; then
 fi
 
 for FILE in /etc/yum.repos.d/fedora.repo /etc/yum.repos.d/fedora-updates.repo /etc/yum.repos.d/fedora-updates-testing.repo; do
-    sudo sed -e "s|^#baseurl=http://download.fedoraproject.org/pub/fedora/linux|baseurl=$DIB_DISTRIBUTION_MIRROR|;/^metalink/d" -i $FILE
+    sudo sed -e "s|^#baseurl=http[s]*://download.fedoraproject.org/pub/fedora/linux|baseurl=$DIB_DISTRIBUTION_MIRROR|;/^metalink/d" -i $FILE
 done