diff --git a/forms/gridfield/GridFieldExportButton.php b/forms/gridfield/GridFieldExportButton.php
index f6fed92f4..7e853a05c 100644
--- a/forms/gridfield/GridFieldExportButton.php
+++ b/forms/gridfield/GridFieldExportButton.php
@@ -149,7 +149,7 @@ class GridFieldExportButton implements GridField_HTMLProvider, GridField_ActionP
 					}
 
 					$value = str_replace(array("\r", "\n"), "\n", $value);
-					$columnData[] = '"' . str_replace('"', '\"', $value) . '"';
+					$columnData[] = '"' . str_replace('"', '""', $value) . '"';
 				}
 				$fileData .= implode($separator, $columnData);
 				$fileData .= "\n";