diff --git a/src/amd/vulkan/radv_device.c b/src/amd/vulkan/radv_device.c
index a455f363e58..4d29d4b4878 100644
--- a/src/amd/vulkan/radv_device.c
+++ b/src/amd/vulkan/radv_device.c
@@ -646,6 +646,7 @@ radv_CreateDevice(VkPhysicalDevice physicalDevice, const VkDeviceCreateInfo *pCr
    bool primitives_generated_query = false;
    bool use_perf_counters = false;
    bool use_dgc = false;
+   bool smooth_lines = false;
 
    /* Check enabled features */
    if (pCreateInfo->pEnabledFeatures) {
@@ -753,6 +754,12 @@ radv_CreateDevice(VkPhysicalDevice physicalDevice, const VkDeviceCreateInfo *pCr
             ps_epilogs = true;
          break;
       }
+      case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_LINE_RASTERIZATION_FEATURES_EXT: {
+         const VkPhysicalDeviceLineRasterizationFeaturesEXT *features = (const void *)ext;
+         if (features->smoothLines)
+            smooth_lines = true;
+         break;
+      }
       default:
          break;
       }
@@ -808,6 +815,7 @@ radv_CreateDevice(VkPhysicalDevice physicalDevice, const VkDeviceCreateInfo *pCr
 
    device->primitives_generated_query = primitives_generated_query;
    device->uses_device_generated_commands = use_dgc;
+   device->smooth_lines = smooth_lines;
 
    radv_init_shader_arenas(device);
 
diff --git a/src/amd/vulkan/radv_private.h b/src/amd/vulkan/radv_private.h
index f7724665579..6063180caa0 100644
--- a/src/amd/vulkan/radv_private.h
+++ b/src/amd/vulkan/radv_private.h
@@ -1099,6 +1099,9 @@ struct radv_device {
 
    bool uses_device_generated_commands;
 
+   /* Whether smooth lines is enabled. */
+   bool smooth_lines;
+
    bool uses_shadow_regs;
 
    struct hash_table *rt_handles;