diff --git a/mach/i86/ncg/table b/mach/i86/ncg/table
index df0300d3a..79d966147 100644
--- a/mach/i86/ncg/table
+++ b/mach/i86/ncg/table
@@ -803,6 +803,9 @@ with EXACT REG rmorconst
   gen add %1,%2			yields %1
 with rmorconst REG
   gen add %2,%1			yields %2
+with EXACT rmorconst const
+  uses reusing %1,REG=%1
+  gen add %a,%2			yields %a
 
 pat adi $1==4
 with EXACT REG REG rmorconst rmorconst