diff --git a/generic/include/clc/math/copysign.h b/generic/include/clc/math/copysign.h
index 8f0742e..0b9fd53 100644
--- a/generic/include/clc/math/copysign.h
+++ b/generic/include/clc/math/copysign.h
@@ -1,2 +1,7 @@
-#define __CLC_BODY <clc/math/copysign.inc>
+#define __CLC_FUNCTION copysign
+#define __CLC_BODY <clc/math/binary_decl_tt.inc>
+
 #include <clc/math/gentype.inc>
+
+#undef __CLC_BODY
+#undef __CLC_FUNCTION
diff --git a/generic/include/clc/math/copysign.inc b/generic/include/clc/math/copysign.inc
deleted file mode 100644
index 6091abc..0000000
--- a/generic/include/clc/math/copysign.inc
+++ /dev/null
@@ -1 +0,0 @@
-_CLC_OVERLOAD _CLC_DECL __CLC_GENTYPE copysign(__CLC_GENTYPE a, __CLC_GENTYPE b);