diff --git a/lib/libm/sf_cos.c b/lib/libm/sf_cos.c
index 5776ef46bb..33cde50e28 100644
--- a/lib/libm/sf_cos.c
+++ b/lib/libm/sf_cos.c
@@ -24,12 +24,6 @@
 
 #include "fdlibm.h"
 
-#ifdef __STDC__
-static const float one=1.0;
-#else
-static float one=1.0;
-#endif
-
 #ifdef __STDC__
 	float cosf(float x)
 #else