diff --git a/server/src/lib/score-import/import-types/common/api-kai/iidx/class-handler.ts b/server/src/lib/score-import/import-types/common/api-kai/iidx/class-handler.ts
index 2988907fc..17627caaf 100644
--- a/server/src/lib/score-import/import-types/common/api-kai/iidx/class-handler.ts
+++ b/server/src/lib/score-import/import-types/common/api-kai/iidx/class-handler.ts
@@ -45,7 +45,7 @@ export async function CreateKaiIIDXClassHandler(
 			return {};
 		}
 
-		if (iidxDan === null) {
+		if (iidxDan === null || iidxDan === undefined) {
 			return {};
 		}
 
diff --git a/server/src/lib/score-import/import-types/common/api-kai/sdvx/class-handler.ts b/server/src/lib/score-import/import-types/common/api-kai/sdvx/class-handler.ts
index a637de914..5871422b5 100644
--- a/server/src/lib/score-import/import-types/common/api-kai/sdvx/class-handler.ts
+++ b/server/src/lib/score-import/import-types/common/api-kai/sdvx/class-handler.ts
@@ -36,7 +36,7 @@ export async function CreateKaiSDVXClassHandler(
 
 		const sdvxDan: number | null = json.skill_level - 1;
 
-		if (sdvxDan === null || sdvxDan === undefined) {
+		if (json.skill_level === null || json.skill_level === undefined) {
 			return {};
 		}