diff --git a/lib/c/math.zig b/lib/c/math.zig
index cce37f9000858b41b08d14a9012f5e607a2b2367..ae3491e430c4cb433ab01430b93193ed732ed14b 100644
--- a/lib/c/math.zig
+++ b/lib/c/math.zig
@@ -45,6 +45,7 @@ comptime {
         symbol(&atanl, "atanl");
         symbol(&cbrt, "cbrt");
         symbol(&cbrtf, "cbrtf");
+        symbol(&cosh, "cosh");
         symbol(&exp10, "exp10");
         symbol(&exp10f, "exp10f");
         symbol(&hypot, "hypot");
@@ -125,6 +126,10 @@ fn copysignl(x: c_longdouble, y: c_longdouble) callconv(.c) c_longdouble {
     return math.copysign(x, y);
 }
 
+fn cosh(x: f64) callconv(.c) f64 {
+    return math.cosh(x);
+}
+
 fn cbrt(x: f64) callconv(.c) f64 {
     return math.cbrt(x);
 }
diff --git a/lib/libc/musl/src/math/cosh.c b/lib/libc/musl/src/math/cosh.c
deleted file mode 100644
index 490c15fb166752d18fa4015401f5a27fd34337b6..0000000000000000000000000000000000000000
--- a/lib/libc/musl/src/math/cosh.c
+++ /dev/null
@@ -1,40 +0,0 @@
-#include "libm.h"
-
-/* cosh(x) = (exp(x) + 1/exp(x))/2
- *         = 1 + 0.5*(exp(x)-1)*(exp(x)-1)/exp(x)
- *         = 1 + x*x/2 + o(x^4)
- */
-double cosh(double x)
-{
-	union {double f; uint64_t i;} u = {.f = x};
-	uint32_t w;
-	double t;
-
-	/* |x| */
-	u.i &= (uint64_t)-1/2;
-	x = u.f;
-	w = u.i >> 32;
-
-	/* |x| < log(2) */
-	if (w < 0x3fe62e42) {
-		if (w < 0x3ff00000 - (26<<20)) {
-			/* raise inexact if x!=0 */
-			FORCE_EVAL(x + 0x1p120f);
-			return 1;
-		}
-		t = expm1(x);
-		return 1 + t*t/(2*(1+t));
-	}
-
-	/* |x| < log(DBL_MAX) */
-	if (w < 0x40862e42) {
-		t = exp(x);
-		/* note: if x>log(0x1p26) then the 1/t is not needed */
-		return 0.5*(t + 1/t);
-	}
-
-	/* |x| > log(DBL_MAX) or nan */
-	/* note: the result is stored to handle overflow */
-	t = __expo2(x, 1.0);
-	return t;
-}
diff --git a/lib/libc/wasi/libc-top-half/musl/src/math/cosh.c b/lib/libc/wasi/libc-top-half/musl/src/math/cosh.c
deleted file mode 100644
index 2cdf0023f8b3725d12c8ec96ba0e6ed30f1d5aae..0000000000000000000000000000000000000000
--- a/lib/libc/wasi/libc-top-half/musl/src/math/cosh.c
+++ /dev/null
@@ -1,44 +0,0 @@
-#include "libm.h"
-
-/* cosh(x) = (exp(x) + 1/exp(x))/2
- *         = 1 + 0.5*(exp(x)-1)*(exp(x)-1)/exp(x)
- *         = 1 + x*x/2 + o(x^4)
- */
-double cosh(double x)
-{
-	union {double f; uint64_t i;} u = {.f = x};
-	uint32_t w;
-	double t;
-
-	/* |x| */
-	u.i &= (uint64_t)-1/2;
-	x = u.f;
-	w = u.i >> 32;
-
-	/* |x| < log(2) */
-	if (w < 0x3fe62e42) {
-		if (w < 0x3ff00000 - (26<<20)) {
-			/* raise inexact if x!=0 */
-			FORCE_EVAL(x + 0x1p120f);
-			return 1;
-		}
-		t = expm1(x);
-		return 1 + t*t/(2*(1+t));
-	}
-
-	/* |x| < log(DBL_MAX) */
-	if (w < 0x40862e42) {
-		t = exp(x);
-		/* note: if x>log(0x1p26) then the 1/t is not needed */
-		return 0.5*(t + 1/t);
-	}
-
-	/* |x| > log(DBL_MAX) or nan */
-	/* note: the result is stored to handle overflow */
-#ifdef __wasilibc_unmodified_upstream // Wasm doesn't have alternate rounding modes
-	t = __expo2(x, 1.0);
-#else
-	t = __expo2(x);
-#endif
-	return t;
-}
diff --git a/src/libs/musl.zig b/src/libs/musl.zig
index d8f5fe28121d5b1e93507bae4edee26c2456ea57..eb49d4c4f136f9b166f4dc81593d7d2ecc9b8daf 100644
--- a/src/libs/musl.zig
+++ b/src/libs/musl.zig
@@ -819,7 +819,6 @@ const src_files = [_][]const u8{
     "musl/src/math/cbrtl.c",
     "musl/src/math/__cos.c",
     "musl/src/math/__cosdf.c",
-    "musl/src/math/cosh.c",
     "musl/src/math/coshf.c",
     "musl/src/math/coshl.c",
     "musl/src/math/__cosl.c",
diff --git a/src/libs/wasi_libc.zig b/src/libs/wasi_libc.zig
index 0bdcb724c50c1db7a6253f042d20e0fb4c2e09c9..72b19fe2e6e88e9cb8ead76bd4178248ef1c633c 100644
--- a/src/libs/wasi_libc.zig
+++ b/src/libs/wasi_libc.zig
@@ -1003,7 +1003,6 @@ const libc_top_half_src_files = [_][]const u8{
     "wasi/libc-top-half/musl/src/locale/locale_map.c",
     "wasi/libc-top-half/musl/src/locale/newlocale.c",
     "wasi/libc-top-half/musl/src/locale/uselocale.c",
-    "wasi/libc-top-half/musl/src/math/cosh.c",
     "wasi/libc-top-half/musl/src/math/coshf.c",
     "wasi/libc-top-half/musl/src/math/__expo2.c",
     "wasi/libc-top-half/musl/src/math/__expo2f.c",