diff --git a/src/effects/backends/builtin/autopaneffect.h b/src/effects/backends/builtin/autopaneffect.h
index 6d96b91f069..8244e6821b6 100644
--- a/src/effects/backends/builtin/autopaneffect.h
+++ b/src/effects/backends/builtin/autopaneffect.h
@@ -20,6 +20,7 @@ class RampedSample {
     inline RampedSample()
             : ramped(false),
               maxDifference(1.0f),
+              currentValue(0),
               initialized(false) {
     }