diff --git a/libs/evoral/src/Curve.cpp b/libs/evoral/src/Curve.cpp
index 6f3532fdcb..a813eb7062 100644
--- a/libs/evoral/src/Curve.cpp
+++ b/libs/evoral/src/Curve.cpp
@@ -56,8 +56,8 @@ Curve::solve ()
 		   (www.korf.co.uk/spline.pdf) for more details.
 		*/
 
-		double x[npoints];
-		double y[npoints];
+		vector<double> x(npoints);
+		vector<double> y(npoints);
 		uint32_t i;
 		ControlList::EventList::const_iterator xx;