diff --git a/tests/physics/src/PhysicsTestUtil.cpp b/tests/physics/src/PhysicsTestUtil.cpp
index f176d5e637..a11d4f2add 100644
--- a/tests/physics/src/PhysicsTestUtil.cpp
+++ b/tests/physics/src/PhysicsTestUtil.cpp
@@ -12,25 +12,7 @@
 #include <glm/gtc/type_ptr.hpp>
 
 #include "PhysicsTestUtil.h"
-
-std::ostream& operator<<(std::ostream& s, const glm::vec3& v) {
-    s << "<" << v.x << "," << v.y << "," << v.z << ">";
-    return s;
-}
-
-std::ostream& operator<<(std::ostream& s, const glm::quat& q) {
-    s << "<" << q.x << "," << q.y << "," << q.z << "," << q.w << ">";
-    return s;
-}
-
-std::ostream& operator<<(std::ostream& s, const glm::mat4& m) {
-    s << "[";
-    for (int j = 0; j < 4; ++j) {
-        s << "  " << m[0][j] << "  " << m[1][j] << "  " << m[2][j] << "  " << m[3][j] << ";";
-    }
-    s << "  ]";
-    return s;
-}
+#include "StreamUtils.h"
 
 std::ostream& operator<<(std::ostream& s, const CollisionInfo& c) {
     s << "[penetration=" << c._penetration 
diff --git a/tests/physics/src/PhysicsTestUtil.h b/tests/physics/src/PhysicsTestUtil.h
index 998a18ff5d..c93545dd76 100644
--- a/tests/physics/src/PhysicsTestUtil.h
+++ b/tests/physics/src/PhysicsTestUtil.h
@@ -21,9 +21,6 @@ const glm::vec3 xAxis(1.f, 0.f, 0.f);
 const glm::vec3 yAxis(0.f, 1.f, 0.f);
 const glm::vec3 zAxis(0.f, 0.f, 1.f);
 
-std::ostream& operator<<(std::ostream& s, const glm::vec3& v);
-std::ostream& operator<<(std::ostream& s, const glm::quat& q);
-std::ostream& operator<<(std::ostream& s, const glm::mat4& m);
 std::ostream& operator<<(std::ostream& s, const CollisionInfo& c);
 
 #endif // hifi_PhysicsTestUtil_h