diff --git a/apps/web/src/utils/__tests__/upload.test.ts b/apps/web/src/utils/__tests__/upload.test.ts
index 46fdc942a..869463600 100644
--- a/apps/web/src/utils/__tests__/upload.test.ts
+++ b/apps/web/src/utils/__tests__/upload.test.ts
@@ -536,6 +536,19 @@ describe('Zod3', () => {
       it('should leave out a field the record does not mention', async () => {
         await expect(processItems('RECORD_ARRAY(name:item1)')).resolves.toMatchObject([{ items: [{ name: 'item1' }] }]);
       });
+
+      it('should reject a record array missing its closing parenthesis, rather than dropping its last character', async () => {
+        await expectRejection(
+          processItems('RECORD_ARRAY(name:item1,quantity:12'),
+          "Syntax error in RECORD_ARRAY declaration: RECORD_ARRAY(name:item1,quantity:12 at column name: 'items' and row number '1'"
+        );
+      });
+
+      it('should keep a colon inside a record array value, splitting each field on its first colon only', async () => {
+        await expect(processItems('RECORD_ARRAY(name:10:30,quantity:1;)')).resolves.toMatchObject([
+          { items: [{ name: '10:30', quantity: 1 }] }
+        ]);
+      });
     });
   });
 });
diff --git a/apps/web/src/utils/upload.ts b/apps/web/src/utils/upload.ts
index 56240b564..6e3d1f714 100644
--- a/apps/web/src/utils/upload.ts
+++ b/apps/web/src/utils/upload.ts
@@ -141,7 +141,7 @@ function extractRecordArrayEntry(entry: string): { [key: string]: string }[] {
   entry = entry.trim();
   const opening = 'RECORD_ARRAY(';
   const closing = ')';
-  if (!entry.startsWith(opening) && !entry.endsWith(closing)) {
+  if (!entry.startsWith(opening) || !entry.endsWith(closing)) {
     throw new UploadError({
       en: `Syntax error in RECORD_ARRAY declaration: ${entry}`,
       fr: `Erreur de syntaxe dans la déclaration RECORD_ARRAY : ${entry}`
@@ -165,15 +165,17 @@ function extractRecordArrayEntry(entry: string): { [key: string]: string }[] {
     }
     const records: { [key: string]: string } = {};
     recordsList.forEach((rawRecord, i) => {
-      const [recordKey, recordValue] = rawRecord.split(':').map((s) => s.trim());
-      if (!recordKey) {
+      const separatorIndex = rawRecord.indexOf(':');
+      const recordKey = rawRecord.slice(0, separatorIndex).trim();
+      const recordValue = rawRecord.slice(separatorIndex + 1).trim();
+      if (separatorIndex === -1 || !recordKey) {
         throw new UploadError({
           en: `Malformed record at index ${i}`,
           fr: `Enregistrement mal formé à l'index ${i}`
         });
       }
       //recordValue can be empty if the value is optional
-      records[recordKey] = recordValue!;
+      records[recordKey] = recordValue;
     });
     return records;
   });