diff --git a/i387/Make.files b/i387/Make.files
index 7e765ad..3189957 100644
--- a/i387/Make.files
+++ b/i387/Make.files
@@ -1,7 +1,7 @@
 $(CUR_SRCS) = e_exp.S e_fmod.S e_log.S e_log10.S \
 	    e_remainder.S e_sqrt.S s_ceil.S s_copysign.S \
-	    s_cos.S s_finite.S s_floor.S s_llrint.S s_logb.S s_lrint.S \
-	    s_remquo.S s_rint.S  s_significand.S s_sin.S s_tan.S \
+	    s_finite.S s_floor.S s_llrint.S s_logb.S s_lrint.S \
+	    s_remquo.S s_rint.S  s_significand.S s_tan.S \
 	    s_trunc.S
 
 ifneq ($(OS), WINNT)