diff --git a/src/messages.ts b/src/messages.ts
index edf2266..127aff2 100644
--- a/src/messages.ts
+++ b/src/messages.ts
@@ -26,7 +26,8 @@ const debugMessages: MessageGroup = {
 	BRC_AUTC_MISSING_DATA: "Unable to autogenerate barcodes. Data is not a string.",
 	BRC_BW_FORMAT_UNSUPPORTED: "This format is not supported (by Apple) for backward support. Please choose another one.",
 	BRC_NO_POOL: "Cannot set barcode: no barcodes found. Please set barcodes first. Barcode is for retrocompatibility only.",
-	DATE_FORMAT_UNMATCH: "%s was not set due to incorrect date format."
+	DATE_FORMAT_UNMATCH: "%s was not set due to incorrect date format.",
+	NFC_INVALID: "Unable to set NFC properties: data not compliant with schema."
 };
 
 /**
diff --git a/src/pass.ts b/src/pass.ts
index 6c3f9e2..62ce64b 100644
--- a/src/pass.ts
+++ b/src/pass.ts
@@ -442,8 +442,8 @@ export class Pass implements PassIndexSignature {
 			return this;
 		}
 
-		if (!(typeof data === "object" && !Array.isArray(data) && schema.isValid(data, "nfcDict"))) {
-			genericDebug("Invalid NFC data provided");
+		if (!(data && typeof data === "object" && !Array.isArray(data) && schema.isValid(data, "nfcDict"))) {
+			genericDebug(formatMessage("NFC_INVALID"));
 			return this;
 		}