diff --git a/plugins/csv-import/src/utils/typeInference.ts b/plugins/csv-import/src/utils/typeInference.ts
index dee2a9e5f..63a991d03 100644
--- a/plugins/csv-import/src/utils/typeInference.ts
+++ b/plugins/csv-import/src/utils/typeInference.ts
@@ -153,11 +153,16 @@ export function inferFieldsFromCSV(records: Record<string, string>[]): InferredF
     const inferredFields: InferredField[] = []
 
     for (const fieldName of fieldNames) {
-        // Skip special fields
+        // Skip special fields (e.g., `:draft`)
         if (fieldName.startsWith(":")) {
             continue
         }
 
+        // Skip companion columns (e.g., `Image:alt` provides alt text for `Image`)
+        if (fieldName.endsWith(":alt")) {
+            continue
+        }
+
         // Collect all values for this field
         const values = records.map(record => {
             const value = record[fieldName]