diff --git a/library/compiler-builtins/.gitmodules b/library/compiler-builtins/.gitmodules
index 7162b2c4d5b2..50ed51e937b9 100644
--- a/library/compiler-builtins/.gitmodules
+++ b/library/compiler-builtins/.gitmodules
@@ -3,4 +3,4 @@
 	url = https://github.com/rust-lang/compiler-rt
 [submodule "libm"]
 	path = libm
-	url = https://github.com/japaric/libm
+	url = https://github.com/rust-lang-nursery/libm
diff --git a/library/compiler-builtins/libm b/library/compiler-builtins/libm
index 96e36ea2620f..3559e703795d 160000
--- a/library/compiler-builtins/libm
+++ b/library/compiler-builtins/libm
@@ -1 +1 @@
-Subproject commit 96e36ea2620f9fbbaa46a01694a2fa3ef6c2fb7e
+Subproject commit 3559e703795d33e84a91da2a35f2f3baac47e872