diff --git a/lib/libc/mingw/math/arm/sincos.S b/lib/libc/mingw/math/arm/sincos.S
index d517f4cd55..ac22d45f25 100644
--- a/lib/libc/mingw/math/arm/sincos.S
+++ b/lib/libc/mingw/math/arm/sincos.S
@@ -8,6 +8,7 @@
 	.file	"sincos.S"
 	.text
 	.align 2
+	/* zig patch: remove sincos symbol because sincos in compiler_rt is used instead */
 	.globl __MINGW_USYMBOL(sincosl)
 	.def	__MINGW_USYMBOL(sincosl);	.scl	2;	.type	32;	.endef
 __MINGW_USYMBOL(sincosl):
diff --git a/lib/libc/mingw/math/arm64/sincos.S b/lib/libc/mingw/math/arm64/sincos.S
index ba0854b78a..d6e92e3bba 100644
--- a/lib/libc/mingw/math/arm64/sincos.S
+++ b/lib/libc/mingw/math/arm64/sincos.S
@@ -8,6 +8,7 @@
 	.file	"sincos.S"
 	.text
 	.align 2
+	/* zig patch: remove sincos symbol because sincos in compiler_rt is used instead */
 	.globl __MINGW_USYMBOL(sincosl)
 	.def	__MINGW_USYMBOL(sincosl);	.scl	2;	.type	32;	.endef
 __MINGW_USYMBOL(sincosl):