diff --git a/src/lib/measurements/__tests__/import-apple-health-export.test.ts b/src/lib/measurements/__tests__/import-apple-health-export.test.ts
index e5f346f5b..1fc88cdc7 100644
--- a/src/lib/measurements/__tests__/import-apple-health-export.test.ts
+++ b/src/lib/measurements/__tests__/import-apple-health-export.test.ts
@@ -271,6 +271,21 @@ function makeFakePrisma(
         }
         return returned;
       },
+      // The import reads once which types hold MANUAL rows.
+      groupBy: async ({
+        where,
+      }: {
+        where: { userId: string; source: string };
+      }) =>
+        [
+          ...new Set(
+            measurements
+              .filter(
+                (m) => m.userId === where.userId && m.source === where.source,
+              )
+              .map((m) => m.type),
+          ),
+        ].map((type) => ({ type })),
       findMany: async ({
         where,
       }: {
diff --git a/src/lib/measurements/__tests__/import-large-export-memory.test.ts b/src/lib/measurements/__tests__/import-large-export-memory.test.ts
index e3c784041..04871867f 100644
--- a/src/lib/measurements/__tests__/import-large-export-memory.test.ts
+++ b/src/lib/measurements/__tests__/import-large-export-memory.test.ts
@@ -297,6 +297,7 @@ function makeDiscardingPrisma(sample: () => void) {
           externalId: row.externalId,
         }));
       },
+      groupBy: async () => [],
       findMany: async () => [],
       findFirst: async () => null,
       update: async () => {