diff --git a/src/radeon_exa_render.c b/src/radeon_exa_render.c
index 138216f..f68d12c 100644
--- a/src/radeon_exa_render.c
+++ b/src/radeon_exa_render.c
@@ -2108,7 +2108,7 @@ static void FUNC_NAME(RadeonDoneComposite)(PixmapPtr pDst)
 
     ENTER_DRAW(0);
 
-    if (IS_R500_3D) {
+    if (IS_R500_3D || (info->ChipFamily == CHIP_FAMILY_RS400)) {
 	/* r500 shows corruption on small things like glyphs without a 3D idle */
 	BEGIN_ACCEL(1);
 	OUT_ACCEL_REG(RADEON_WAIT_UNTIL, RADEON_WAIT_3D_IDLECLEAN);