diff --git a/src/datum_api.c b/src/datum_api.c
index 646c6e3..611e7e5 100644
--- a/src/datum_api.c
+++ b/src/datum_api.c
@@ -438,6 +438,7 @@ int datum_api_cmd(struct MHD_Connection *connection, char *post, int len) {
 						}
 					}
 				}
+				json_decref(root);
 			}
 		}
 	}