diff --git a/src/grid/VTI.f90 b/src/grid/VTI.f90
index 600624a16..5c3cb864a 100644
--- a/src/grid/VTI.f90
+++ b/src/grid/VTI.f90
@@ -38,8 +38,6 @@ function VTI_readDataset_int(fileContent,label) result(dataset)
                            fileContent,label)
   dataset = as_Int(base64Str,headerType,compressed,dataType)
 
-  if (.not. allocated(dataset)) call IO_error(error_ID = 844, ext_msg='dataset "'//label//'" not found')
-
 end function VTI_readDataset_int
 
 
@@ -63,8 +61,6 @@ function VTI_readDataset_real(fileContent,label) result(dataset)
                            fileContent,label)
   dataset = as_real(base64Str,headerType,compressed,dataType)
 
-  if (.not. allocated(dataset)) call IO_error(error_ID = 844, ext_msg='dataset "'//label//'" not found')
-
 end function VTI_readDataset_real
 
 
@@ -133,6 +129,8 @@ subroutine VTI_readDataset_raw(base64Str,dataType,headerType,compressed, &
 
   end do outer
 
+  if (.not. allocated(base64Str)) call IO_error(error_ID = 844, ext_msg='dataset "'//label//'" not found')
+
 end subroutine VTI_readDataset_raw