diff --git a/syringe.cpp b/syringe.cpp
index e8903c49c52c5b20a8cabe112aac748c24a12691..d3e641defb08c7e48cc7d470726c1b5cdf1bac14 100644
--- a/syringe.cpp
+++ b/syringe.cpp
@@ -59,7 +59,7 @@ string Syringe :: get_ref()
 
 string Syringe :: get_brand( )
 {
-    return SyringeJSON["brand"].as<string>;
+    return SyringeJSON["brand"].as<string>();
 }
 
 float Syringe :: get_total_volume_mL()