diff --git a/src/storage/zone.cr b/src/storage/zone.cr
index d3b2c6f..4990e90 100644
--- a/src/storage/zone.cr
+++ b/src/storage/zone.cr
@@ -316,7 +316,7 @@ class DNSManager::Storage::Zone
 			end
 
 			def to_bind9(io : IO)
-				io << "#{t.to_s.downcase}:#{v}"
+				io << "#{t.to_s.downcase}=#{v}"
 			end
 		end