diff --git a/src/database.ts b/src/database.ts
index 1cf9d09..b513f76 100644
--- a/src/database.ts
+++ b/src/database.ts
@@ -112,7 +112,7 @@ export async function getPNIDByNNASAccessToken(token: string): Promise<HydratedP
 		const unpackedToken = unpackToken(decryptedToken);
 
 		// * Return if the system type isn't Wii U (NNAS) and the token type isn't "OAuth Access"
-		if (unpackedToken.system_type !== 1 || unpackedToken.token_type !== 1) {
+		if (unpackedToken.system_type !== 'WIIU' || unpackedToken.token_type !== 'OAUTH_ACCESS') {
 			return null;
 		}
 
@@ -142,7 +142,7 @@ export async function getPNIDByNNASRefreshToken(token: string): Promise<Hydrated
 		const unpackedToken = unpackToken(decryptedToken);
 
 		// * Return if the system type isn't Wii U (NNAS) and the token type isn't "OAuth Refresh"
-		if (unpackedToken.system_type !== 1 || unpackedToken.token_type !== 2) {
+		if (unpackedToken.system_type !== 'WIIU' || unpackedToken.token_type !== 'OAUTH_REFRESH') {
 			return null;
 		}
 
@@ -172,7 +172,7 @@ export async function getPNIDByAPIAccessToken(token: string): Promise<HydratedPN
 		const unpackedToken = unpackToken(decryptedToken);
 
 		// * Return if the system type isn't API (REST and gRPC) and the token type isn't "OAuth Access"
-		if (unpackedToken.system_type !== 3 || unpackedToken.token_type !== 1) {
+		if (unpackedToken.system_type !== 'API' || unpackedToken.token_type !== 'OAUTH_ACCESS') {
 			return null;
 		}
 
@@ -202,7 +202,7 @@ export async function getPNIDByAPIRefreshToken(token: string): Promise<HydratedP
 		const unpackedToken = unpackToken(decryptedToken);
 
 		// * Return if the system type isn't API (REST and gRPC) and the token type isn't "OAuth Refresh"
-		if (unpackedToken.system_type !== 3 || unpackedToken.token_type !== 2) {
+		if (unpackedToken.system_type !== 'API' || unpackedToken.token_type !== 'OAUTH_REFRESH') {
 			return null;
 		}