diff --git a/Cargo.toml b/Cargo.toml
index ebb4c93..efde953 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,7 +10,6 @@ authors = [
 build = "scripts/build.rs"
 
 [lib]
-
 name = "ovr"
 path = "src/oculus-vr/lib.rs"
 
@@ -19,5 +18,4 @@ name = "oculus-info"
 path = "src/oculus-info/main.rs"
 
 [dependencies.cgmath]
-
 git = "https://github.com/bjz/cgmath-rs.git"
diff --git a/src/oculus-vr/lib.rs b/src/oculus-vr/lib.rs
index 2077ef3..438829c 100644
--- a/src/oculus-vr/lib.rs
+++ b/src/oculus-vr/lib.rs
@@ -402,6 +402,9 @@ pub struct Hmd {
     ptr: *mut ll::Hmd
 }
 
+unsafe impl Sync for Hmd {}
+unsafe impl Send for Hmd {}
+
 impl Drop for Hmd {
     fn drop(&mut self) {
         unsafe {ll::ovrHmd_Destroy(self.ptr)}