diff --git a/records_a.tf b/records_a.tf
index f369a5d..4e0e75f 100644
--- a/records_a.tf
+++ b/records_a.tf
@@ -1,5 +1,5 @@
 resource "cloudflare_record" "terraform" {
-  zone_id = "${var.cloudflare_zone}"
+  zone_id = var.cloudflare_zone
   name    = "terraform"
   value   = "82.66.77.254"
   type    = "A"
@@ -8,7 +8,7 @@ resource "cloudflare_record" "terraform" {
 }
 
 resource "cloudflare_record" "a-root" {
-  zone_id = "${var.cloudflare_zone}"
+  zone_id = var.cloudflare_zone
   name    = "@"
   value   = var.main_server
   type    = "A"
diff --git a/records_cname.tf b/records_cname.tf
index 8954fb9..a406874 100644
--- a/records_cname.tf
+++ b/records_cname.tf
@@ -1,5 +1,5 @@
 resource "cloudflare_record" "cname-www" {
-  zone_id = "${var.cloudflare_zone}"
+  zone_id = var.cloudflare_zone
   name    = "www"
   value   = "${cloudflare_record.a-root.hostname}"
   type    = "CNAME"
@@ -8,7 +8,7 @@ resource "cloudflare_record" "cname-www" {
 }
 
 resource "cloudflare_record" "cname-mail" {
-  zone_id = "${var.cloudflare_zone}"
+  zone_id = var.cloudflare_zone
   name    = "mail"
   value   = "ghs.googlehosted.com"
   type    = "CNAME"
diff --git a/records_mx.tf b/records_mx.tf
index cae5a99..1d87fb3 100644
--- a/records_mx.tf
+++ b/records_mx.tf
@@ -1,5 +1,5 @@
 resource "cloudflare_record" "mx-aspmx" {
-  zone_id  = "${var.cloudflare_zone}"
+  zone_id  = var.cloudflare_zone
   name     = "@"
   value    = "aspmx.l.google.com"
   type     = "MX"
@@ -7,7 +7,7 @@ resource "cloudflare_record" "mx-aspmx" {
 }
 
 resource "cloudflare_record" "mx-alt1" {
-  zone_id  = "${var.cloudflare_zone}"
+  zone_id  = var.cloudflare_zone
   name     = "@"
   value    = "alt1.aspmx.l.google.com"
   type     = "MX"
@@ -15,7 +15,7 @@ resource "cloudflare_record" "mx-alt1" {
 }
 
 resource "cloudflare_record" "mx-alt2" {
-  zone_id  = "${var.cloudflare_zone}"
+  zone_id  = var.cloudflare_zone
   name     = "@"
   value    = "alt2.aspmx.l.google.com"
   type     = "MX"
@@ -23,7 +23,7 @@ resource "cloudflare_record" "mx-alt2" {
 }
 
 resource "cloudflare_record" "mx-alt3" {
-  zone_id  = "${var.cloudflare_zone}"
+  zone_id  = var.cloudflare_zone
   name     = "@"
   value    = "alt3.aspmx.l.google.com"
   type     = "MX"
@@ -31,7 +31,7 @@ resource "cloudflare_record" "mx-alt3" {
 }
 
 resource "cloudflare_record" "mx-alt4" {
-  zone_id  = "${var.cloudflare_zone}"
+  zone_id  = var.cloudflare_zone
   name     = "@"
   value    = "alt4.aspmx.l.google.com"
   type     = "MX"
diff --git a/records_txt.tf b/records_txt.tf
index 5867982..4e6e954 100644
--- a/records_txt.tf
+++ b/records_txt.tf
@@ -1,5 +1,5 @@
 resource "cloudflare_record" "txt-amazonses" {
-  zone_id  = "${var.cloudflare_zone}"
+  zone_id  = var.cloudflare_zone
   name     = "_amazonses"
   value    = "xxxxxxxx"
   type     = "TXT"
@@ -7,7 +7,7 @@ resource "cloudflare_record" "txt-amazonses" {
 }
 
 resource "cloudflare_record" "txt-dmarc" {
-  zone_id  = "${var.cloudflare_zone}"
+  zone_id  = var.cloudflare_zone
   name     = "_dmarc"
   value    = "v=DMARC1; p=none; pct=100; rua=mailto:dmarc@tips-of-mine.com; sp=none; aspf=r;"
   type     = "TXT"
@@ -15,7 +15,7 @@ resource "cloudflare_record" "txt-dmarc" {
 }
 
 resource "cloudflare_record" "txt-mandrill-domainkey" {
-  zone_id  = "${var.cloudflare_zone}"
+  zone_id  = var.cloudflare_zone
   name     = "mandrill._domainkey"
   value    = "v=DKIM1; k=rsa; p=xxxxxxxx;"
   type     = "TXT"