diff --git a/assembly/mips/bit-bash.lisp b/assembly/mips/bit-bash.lisp
index 24205e4e83be694de38a61bfba6bd48fd8dbbdc9..0dfb823fb55fc29820326100604ea922f4609671 100644
--- a/assembly/mips/bit-bash.lisp
+++ b/assembly/mips/bit-bash.lisp
@@ -318,7 +318,7 @@
 			  (:temp temp2 descriptor-reg l0-offset)
 			  (:temp src-shift descriptor-reg cname-offset)
 			  (:temp src-bit-offset descriptor-reg lexenv-offset)
-			  (:temp dst-bit-offset descriptor-reg l0-offset)
+			  (:temp dst-bit-offset descriptor-reg l1-offset)
 			  (:temp ntemp1 non-descriptor-reg nl2-offset)
 			  (:temp ntemp2 non-descriptor-reg nl3-offset)
 			  (:temp ntemp3 non-descriptor-reg nl4-offset))