diff --git a/FileTypes/src/main/java/com/infomaniak/library/filetypes/FileType.kt b/FileTypes/src/main/java/com/infomaniak/library/filetypes/FileType.kt
index 489340d3b..6caf08b2c 100644
--- a/FileTypes/src/main/java/com/infomaniak/library/filetypes/FileType.kt
+++ b/FileTypes/src/main/java/com/infomaniak/library/filetypes/FileType.kt
@@ -46,9 +46,14 @@ enum class FileType(val icon: ImageVector, private val colorLight: Color, privat
     }
 
     companion object {
+        fun getMimeTypeFromFileName(fileName: String): String? {
+            return fileName.extractExtension()?.let { extension ->
+                MimeTypeMap.getSingleton().getMimeTypeFromExtension(extension)
+            }
+        }
+
         fun guessFromFileName(fileName: String): FileType {
-            val extension = fileName.extractExtension() ?: return UNKNOWN
-            val mimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(extension) ?: return UNKNOWN
+            val mimeType = getMimeTypeFromFileName(fileName) ?: return UNKNOWN
             return guessFromMimeType(mimeType)
         }
 
diff --git a/app/src/main/java/com/infomaniak/swisstransfer/ui/screen/newtransfer/ImportationFilesManager.kt b/app/src/main/java/com/infomaniak/swisstransfer/ui/screen/newtransfer/ImportationFilesManager.kt
index d51755307..4041cc999 100644
--- a/app/src/main/java/com/infomaniak/swisstransfer/ui/screen/newtransfer/ImportationFilesManager.kt
+++ b/app/src/main/java/com/infomaniak/swisstransfer/ui/screen/newtransfer/ImportationFilesManager.kt
@@ -23,6 +23,7 @@ import android.database.Cursor
 import android.net.Uri
 import android.provider.OpenableColumns
 import androidx.core.net.toUri
+import com.infomaniak.library.filetypes.FileType
 import com.infomaniak.multiplatform_swisstransfer.common.interfaces.ui.FileUi
 import com.infomaniak.sentry.SentryLog
 import com.infomaniak.swisstransfer.ui.utils.FileNameUtils
@@ -103,7 +104,7 @@ class ImportationFilesManager @Inject constructor(
                     uid = fileToImport.fileName,
                     fileName = fileToImport.fileName,
                     fileSize = fileToImport.fileSizeInBytes,
-                    mimeType = null,
+                    mimeType = FileType.getMimeTypeFromFileName(fileToImport.fileName),
                     localPath = copiedFile.toUri().toString(),
                 )
             )
diff --git a/app/src/main/java/com/infomaniak/swisstransfer/ui/utils/FileUiExt.kt b/app/src/main/java/com/infomaniak/swisstransfer/ui/utils/FileUiExt.kt
index 1ae514a8e..5b9d485b7 100644
--- a/app/src/main/java/com/infomaniak/swisstransfer/ui/utils/FileUiExt.kt
+++ b/app/src/main/java/com/infomaniak/swisstransfer/ui/utils/FileUiExt.kt
@@ -20,6 +20,6 @@ package com.infomaniak.swisstransfer.ui.utils
 import com.infomaniak.library.filetypes.FileType
 import com.infomaniak.multiplatform_swisstransfer.common.interfaces.ui.FileUi
 
-val FileUi.fileType: FileType get() = mimeType?.let { FileType.guessFromMimeType(it) } ?: FileType.guessFromFileName(fileName)
+val FileUi.fileType: FileType get() = FileType.guessFromFileName(fileName)
 
 val FileUi.hasPreview: Boolean get() = fileType == FileType.IMAGE