diff --git a/src/sfizz/Curve.cpp b/src/sfizz/Curve.cpp
index eaa22cdf..2e53bc4c 100644
--- a/src/sfizz/Curve.cpp
+++ b/src/sfizz/Curve.cpp
@@ -58,7 +58,7 @@ Curve Curve::buildCurveFromHeader(
 }
 
 Curve Curve::buildFromVelcurvePoints(
-    const std::vector<std::pair<uint8_t, float>>& points,
+    absl::Span<const std::pair<uint8_t, float>> points,
     Interpolator itp, bool invert)
 {
     Curve curve;
diff --git a/src/sfizz/Curve.h b/src/sfizz/Curve.h
index d75e1a67..3cf4b2cb 100644
--- a/src/sfizz/Curve.h
+++ b/src/sfizz/Curve.h
@@ -75,7 +75,7 @@ public:
      * @param invert whether to invert the curve
      */
     static Curve buildFromVelcurvePoints(
-        const std::vector<std::pair<uint8_t, float>>& points,
+        absl::Span<const std::pair<uint8_t, float>> points,
         Interpolator itp = Interpolator::Linear, bool invert = false);
 
     /**