diff --git a/.gitmodules b/.gitmodules
index 7d41369fa..2e87e93ba 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,3 @@
 [submodule "backtrace-sys/src/libbacktrace"]
 	path = crates/backtrace-sys/src/libbacktrace
-	url = https://github.com/rust-lang-nursery/libbacktrace
+	url = https://github.com/t6/libbacktrace
diff --git a/crates/backtrace-sys/build.rs b/crates/backtrace-sys/build.rs
index 5b49cd4a4..dc55d1c03 100644
--- a/crates/backtrace-sys/build.rs
+++ b/crates/backtrace-sys/build.rs
@@ -40,6 +40,7 @@ fn main() {
 
     if target.contains("darwin") {
         build.file("src/libbacktrace/macho.c");
+        build.define("HAVE_MACH_O_DYLD_H", "1");
     } else if target.contains("windows") {
         build.file("src/libbacktrace/pecoff.c");
     } else {
diff --git a/crates/backtrace-sys/src/libbacktrace b/crates/backtrace-sys/src/libbacktrace
index f4d02bbdb..d27b870a4 160000
--- a/crates/backtrace-sys/src/libbacktrace
+++ b/crates/backtrace-sys/src/libbacktrace
@@ -1 +1 @@
-Subproject commit f4d02bbdbf8a2c5a31f0801dfef597a86caad9e3
+Subproject commit d27b870a4adc8c47989f16de9da8c4aff4ae9d72