diff --git a/src/gallium/drivers/llvmpipe/lp_rast_linear_fallback.c b/src/gallium/drivers/llvmpipe/lp_rast_linear_fallback.c
index ede03993475..c7356c48604 100644
--- a/src/gallium/drivers/llvmpipe/lp_rast_linear_fallback.c
+++ b/src/gallium/drivers/llvmpipe/lp_rast_linear_fallback.c
@@ -115,7 +115,7 @@ shade_quads_all( struct lp_rasterizer_task *task,
    BEGIN_JIT_CALL(state, task);
    variant->jit_function[RAST_WHOLE]( &state->jit_context,
                                       x, y,
-                                      1,
+                                      inputs->frontfacing,
                                       (const float (*)[4])GET_A0(inputs),
                                       (const float (*)[4])GET_DADX(inputs),
                                       (const float (*)[4])GET_DADY(inputs),
@@ -155,7 +155,7 @@ shade_quads_mask(struct lp_rasterizer_task *task,
    BEGIN_JIT_CALL(state, task);
    variant->jit_function[RAST_EDGE_TEST](&state->jit_context,
                                          x, y,
-                                         1,
+                                         inputs->frontfacing,
                                          (const float (*)[4])GET_A0(inputs),
                                          (const float (*)[4])GET_DADX(inputs),
                                          (const float (*)[4])GET_DADY(inputs),