diff --git a/libavcodec/x86/rv40dsp.asm b/libavcodec/x86/rv40dsp.asm
index 7ec72be36c..d12b079eb7 100644
--- a/libavcodec/x86/rv40dsp.asm
+++ b/libavcodec/x86/rv40dsp.asm
@@ -98,11 +98,7 @@ SECTION .text
 %endif
     packuswb  %1, %1
 %ifidn %3, avg
-%if cpuflag(3dnow)
-    pavgusb   %1, %2
-%else
-    pavgb     %1, %2
-%endif
+    PAVGB     %1, %2
 %endif
     movh  [dstq], %1
 %endmacro