diff --git a/arangod/RestHandler/RestImportHandler.cpp b/arangod/RestHandler/RestImportHandler.cpp
index 0127283809..a7fc808a6c 100644
--- a/arangod/RestHandler/RestImportHandler.cpp
+++ b/arangod/RestHandler/RestImportHandler.cpp
@@ -1079,7 +1079,7 @@ std::shared_ptr<VPackBuilder> RestImportHandler::createVelocyPackObject(
  
   if (itKeys.size() != itValues.size()) { 
     errorMsg = positionize(lineNumber) + "wrong number of JSON values (got " +
-               std::to_string(itKeys.size()) + ", expected " + std::to_string(itValues.size()) + ")";
+               std::to_string(itValues.size()) + ", expected " + std::to_string(itKeys.size()) + ")";
     THROW_ARANGO_EXCEPTION_MESSAGE(TRI_ERROR_BAD_PARAMETER, errorMsg);
   }