diff --git a/sexp_effects/primitive_libs/streaming_gpu.py b/sexp_effects/primitive_libs/streaming_gpu.py
index 3d7fa8e..d9ee129 100644
--- a/sexp_effects/primitive_libs/streaming_gpu.py
+++ b/sexp_effects/primitive_libs/streaming_gpu.py
@@ -922,8 +922,8 @@ def prim_fused_pipeline(img, effects_list, **dynamic_params):
                     frequency=effect.get('frequency', 8),
                     decay=effect.get('decay', 2),
                     phase=dynamic_params.get('ripple_phase', effect.get('phase', 0)),
-                    center_x=effect.get('center_x'),
-                    center_y=effect.get('center_y'))
+                    cx=effect.get('center_x'),
+                    cy=effect.get('center_y'))
             elif op == 'brightness':
                 factor = effect.get('factor', 1.0)
                 result = gpu_contrast(result, factor, 0)