diff --git a/src/constraint/HingeJoint.cpp b/src/constraint/HingeJoint.cpp
index e520dce9..99f3b2e5 100644
--- a/src/constraint/HingeJoint.cpp
+++ b/src/constraint/HingeJoint.cpp
@@ -251,7 +251,7 @@ decimal HingeJoint::getMotorTorque(decimal timeStep) const {
 
 // Return the current hinge angle
 /**
- * @return The current hinge angle (in radians)
+ * @return The current hinge angle (in radians) in the range [-pi; pi]
  */
 decimal HingeJoint::getAngle() const {