diff --git a/include/IdealCurves.h b/include/IdealCurves.h
index b5c5fd8b..eecd0f28 100644
--- a/include/IdealCurves.h
+++ b/include/IdealCurves.h
@@ -75,7 +75,7 @@ namespace CoolProp{
 						break;
 					}
 				}
-				catch (std::exception &e){
+				catch (std::exception &){
 					break;
 				}
 			}