diff --git a/src/gallium/auxiliary/nir/nir_to_tgsi_info.c b/src/gallium/auxiliary/nir/nir_to_tgsi_info.c
index 0e72c07485f..ecc7f2bf0b2 100644
--- a/src/gallium/auxiliary/nir/nir_to_tgsi_info.c
+++ b/src/gallium/auxiliary/nir/nir_to_tgsi_info.c
@@ -585,9 +585,6 @@ void nir_tgsi_scan_shader(const struct nir_shader *nir,
          info->output_semantic_index[i] = semantic_index;
 
          switch (semantic_name) {
-         case TGSI_SEMANTIC_PRIMID:
-            info->writes_primid = true;
-            break;
          case TGSI_SEMANTIC_VIEWPORT_INDEX:
             info->writes_viewport_index = true;
             break;
diff --git a/src/gallium/auxiliary/tgsi/tgsi_scan.c b/src/gallium/auxiliary/tgsi/tgsi_scan.c
index 58f88bc6d93..459b868043a 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_scan.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_scan.c
@@ -625,9 +625,6 @@ scan_declaration(struct tgsi_shader_info *info,
          }
 
          switch (semName) {
-         case TGSI_SEMANTIC_PRIMID:
-            info->writes_primid = true;
-            break;
          case TGSI_SEMANTIC_VIEWPORT_INDEX:
             info->writes_viewport_index = true;
             break;
diff --git a/src/gallium/auxiliary/tgsi/tgsi_scan.h b/src/gallium/auxiliary/tgsi/tgsi_scan.h
index d55d06d478d..131cc5a36ea 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_scan.h
+++ b/src/gallium/auxiliary/tgsi/tgsi_scan.h
@@ -101,7 +101,6 @@ struct tgsi_shader_info
    bool writes_position;
    bool writes_psize;
    bool writes_clipvertex;
-   bool writes_primid;
    bool writes_viewport_index;
    bool writes_layer;
    bool writes_memory; /**< contains stores or atomics to buffers or images */