diff --git a/src/iop/exposure.c b/src/iop/exposure.c
index e0d96955576a..2a2f59926a4a 100644
--- a/src/iop/exposure.c
+++ b/src/iop/exposure.c
@@ -848,7 +848,7 @@ static void _exposure_proxy_handle_event(int n_press,
     else if(!n_press)
     { // scroll
       const float step = dt_bauhaus_slider_get_step(widget);
-      dt_bauhaus_slider_set(widget, val + delta * step * accel);
+      dt_bauhaus_slider_set(widget, val - delta * step * accel);
     }
     else
     { // drag