diff --git a/src/gallium/frontends/nine/nine_state.c b/src/gallium/frontends/nine/nine_state.c
index d3b57862a6d..9cc4ba289e4 100644
--- a/src/gallium/frontends/nine/nine_state.c
+++ b/src/gallium/frontends/nine/nine_state.c
@@ -1892,6 +1892,9 @@ CSMT_ITEM_NO_WAIT(nine_context_set_viewport,
 {
     struct nine_context *context = &device->context;
 
+    if (!memcmp(viewport, &context->viewport, sizeof(context->viewport)))
+        return;
+
     context->viewport = *viewport;
     context->changed.group |= NINE_STATE_VIEWPORT;
 }
@@ -1901,6 +1904,9 @@ CSMT_ITEM_NO_WAIT(nine_context_set_scissor,
 {
     struct nine_context *context = &device->context;
 
+    if (!memcmp(scissor, &context->scissor, sizeof(context->scissor)))
+        return;
+
     context->scissor = *scissor;
     context->changed.group |= NINE_STATE_SCISSOR;
 }