diff --git a/src/amd/vulkan/radv_shader.h b/src/amd/vulkan/radv_shader.h
index 1d2e4853e3c..5e893e57469 100644
--- a/src/amd/vulkan/radv_shader.h
+++ b/src/amd/vulkan/radv_shader.h
@@ -169,6 +169,7 @@ enum radv_ud_index {
    AC_UD_VS_MAX_UD,
    AC_UD_PS_EPILOG_PC,
    AC_UD_PS_NUM_SAMPLES,
+   AC_UD_PS_LINE_RAST_MODE,
    AC_UD_PS_MAX_UD,
    AC_UD_CS_GRID_SIZE = AC_UD_SHADER_START,
    AC_UD_CS_SBT_DESCRIPTORS,
diff --git a/src/amd/vulkan/radv_shader_args.c b/src/amd/vulkan/radv_shader_args.c
index 276527679cb..dfe11e9aa2b 100644
--- a/src/amd/vulkan/radv_shader_args.c
+++ b/src/amd/vulkan/radv_shader_args.c
@@ -644,6 +644,9 @@ declare_shader_args(const struct radv_device *device, const struct radv_pipeline
          add_ud_arg(args, 1, AC_ARG_INT, &args->ps_num_samples, AC_UD_PS_NUM_SAMPLES);
       }
 
+      if (key->dynamic_line_rast_mode)
+         add_ud_arg(args, 1, AC_ARG_INT, &args->ps_line_rast_mode, AC_UD_PS_LINE_RAST_MODE);
+
       ac_add_arg(&args->ac, AC_ARG_SGPR, 1, AC_ARG_INT, &args->ac.prim_mask);
       if (args->explicit_scratch_args && gfx_level < GFX11) {
          ac_add_arg(&args->ac, AC_ARG_SGPR, 1, AC_ARG_INT, &args->ac.scratch_offset);
diff --git a/src/amd/vulkan/radv_shader_args.h b/src/amd/vulkan/radv_shader_args.h
index e3fb771de4f..49928b63986 100644
--- a/src/amd/vulkan/radv_shader_args.h
+++ b/src/amd/vulkan/radv_shader_args.h
@@ -60,6 +60,7 @@ struct radv_shader_args {
    /* Fragment shaders */
    struct ac_arg ps_epilog_pc;
    struct ac_arg ps_num_samples;
+   struct ac_arg ps_line_rast_mode;
 
    struct ac_arg prolog_inputs;
    struct ac_arg vs_inputs[MAX_VERTEX_ATTRIBS];