diff --git a/compiler/mips/mips-regs.txt b/compiler/mips/mips-regs.txt
index acbf36402328337dde53a3fba561bf17f3c9440b..dd39a472785a112949d876e7e034593d048cd848 100644
--- a/compiler/mips/mips-regs.txt
+++ b/compiler/mips/mips-regs.txt
@@ -13,7 +13,7 @@
   R10	t2  N	Temporary Reg		L2		Lisp Reg			Y
   R11	t3  N	Temporary Reg		L3		Lisp Reg			Y
   R12	t4  N	Temporary Reg		L4		Lisp Reg			Y
-  R13	t5  N	Temporary Reg		L5/LEXENV	Lisp Reg / Lexical Environment	Y
+  R13	t5  N	Temporary Reg		L5/LEX-ENV	Lisp Reg / Lexical Environment	Y
   R14	t6  N	Temporary Reg		L6/OLD-CONT	Lisp Reg / Old Continuation	Y
   R15	t7  N	Temporary Reg		L7/CALL-NAME	Lisp Reg / Call Name		Y
   R16	s0  Y	Saved Temporary Reg	L8/A0		Lisp Reg / Arg			Y
@@ -23,7 +23,7 @@
   R20	s4  Y	Saved Temporary Reg	L12/A4		Lisp Reg / Arg			Y
   R21	s5  Y	Saved Temporary Reg	L13/A5		Lisp Reg / Arg			Y
   R22	s6  Y	Saved Temporary Reg	L14/ARGS	Lisp Reg / Argument Pointer	Y   
-  R23	s7  Y	Saved Temporary Reg	L15/LRA		Lisp Reg / Lisp Return Addr	Y
+  R23	s7  Y	Saved Temporary Reg	L15/LRA		Lisp Reg / Lisp Return Address	Y
   R24	t8  N	Temporary Reg		BSP		Binding Stack Pointer		Special
   R25   t9  N	Temporary Reg		CSP		Control Stack Pointer		Special
   R26	k0  -	Kernel Reg (reserved)	-		Kernel Reg (reserved)		N