diff --git a/main/src/com/google/refine/commands/importing/GetImportingConfigurationCommand.java b/main/src/com/google/refine/commands/importing/GetImportingConfigurationCommand.java
index 19a7b40ec..e07e5a774 100644
--- a/main/src/com/google/refine/commands/importing/GetImportingConfigurationCommand.java
+++ b/main/src/com/google/refine/commands/importing/GetImportingConfigurationCommand.java
@@ -53,6 +53,7 @@ public class GetImportingConfigurationCommand extends Command {
             throws ServletException, IOException {
 
         Writer w = response.getWriter();
+        response.setContentType("application/json");
         JSONWriter writer = new JSONWriter(w);
         try {
             writer.object();