diff --git a/traffic_router/core/src/main/java/com/comcast/cdn/traffic_control/traffic_router/core/dns/SignatureManager.java b/traffic_router/core/src/main/java/com/comcast/cdn/traffic_control/traffic_router/core/dns/SignatureManager.java
index e19a9d9a22..fcdc0240f3 100644
--- a/traffic_router/core/src/main/java/com/comcast/cdn/traffic_control/traffic_router/core/dns/SignatureManager.java
+++ b/traffic_router/core/src/main/java/com/comcast/cdn/traffic_control/traffic_router/core/dns/SignatureManager.java
@@ -536,7 +536,7 @@ protected boolean isDnssecEnabled() {
 	}
 
 	private boolean isDnssecEnabled(final Name name) {
-		return dnssecEnabled && keyMap.containsKey(name.toString());
+		return dnssecEnabled && keyMap.containsKey(name.toString().toLowerCase());
 	}
 
 	private void setDnssecEnabled(final boolean dnssecEnabled) {