diff --git a/library/compiler-builtins/libm b/library/compiler-builtins/libm
index 3559e703795d..0ae442888c7a 160000
--- a/library/compiler-builtins/libm
+++ b/library/compiler-builtins/libm
@@ -1 +1 @@
-Subproject commit 3559e703795d33e84a91da2a35f2f3baac47e872
+Subproject commit 0ae442888c7af72c0a335edd43dbbd74c751f119
diff --git a/library/compiler-builtins/src/math.rs b/library/compiler-builtins/src/math.rs
index b6195553916d..1893f1c166ba 100644
--- a/library/compiler-builtins/src/math.rs
+++ b/library/compiler-builtins/src/math.rs
@@ -71,6 +71,8 @@ no_mangle! {
     fn sinhf(n: f32) -> f32;
     fn tanf(n: f32) -> f32;
     fn tanhf(n: f32) -> f32;
+    fn ldexp(f: f64, n: i32) -> f64;
+    fn ldexpf(f: f32, n: i32) -> f32;
 }
 
 #[cfg(all(target_vendor = "fortanix", target_env = "sgx"))]