diff --git a/src/mesa/drivers/dri/i965/gen6_queryobj.c b/src/mesa/drivers/dri/i965/gen6_queryobj.c
index 3aec99cc15f..130236e2f96 100644
--- a/src/mesa/drivers/dri/i965/gen6_queryobj.c
+++ b/src/mesa/drivers/dri/i965/gen6_queryobj.c
@@ -84,11 +84,16 @@ brw_store_register_mem64(struct brw_context *brw,
 
 static void
 write_primitives_generated(struct brw_context *brw,
-                           drm_intel_bo *query_bo, int idx)
+                           drm_intel_bo *query_bo, int stream, int idx)
 {
    intel_batchbuffer_emit_mi_flush(brw);
 
-   brw_store_register_mem64(brw, query_bo, CL_INVOCATION_COUNT, idx);
+   if (brw->gen >= 7 && stream > 0) {
+      brw_store_register_mem64(brw, query_bo,
+                               GEN7_SO_PRIM_STORAGE_NEEDED(stream), idx);
+   } else {
+      brw_store_register_mem64(brw, query_bo, CL_INVOCATION_COUNT, idx);
+   }
 }
 
 static void
@@ -239,7 +244,7 @@ gen6_begin_query(struct gl_context *ctx, struct gl_query_object *q)
       break;
 
    case GL_PRIMITIVES_GENERATED:
-      write_primitives_generated(brw, query->bo, 0);
+      write_primitives_generated(brw, query->bo, query->Base.Stream, 0);
       break;
 
    case GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN:
@@ -277,7 +282,7 @@ gen6_end_query(struct gl_context *ctx, struct gl_query_object *q)
       break;
 
    case GL_PRIMITIVES_GENERATED:
-      write_primitives_generated(brw, query->bo, 1);
+      write_primitives_generated(brw, query->bo, query->Base.Stream, 1);
       break;
 
    case GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN: