diff --git a/unity/Runtime/Bindings/MjBindings.cs b/unity/Runtime/Bindings/MjBindings.cs
index 1fec67e2..bd2c547f 100644
--- a/unity/Runtime/Bindings/MjBindings.cs
+++ b/unity/Runtime/Bindings/MjBindings.cs
@@ -3482,6 +3482,9 @@ public static unsafe extern int mju_eig3(double* eigval, double* eigvec, double*
 [DllImport("mujoco", CallingConvention = CallingConvention.Cdecl)]
 public static unsafe extern int mju_boxQP(double* res, double* R, int* index, double* H, double* g, int n, double* lower, double* upper);
 
+[DllImport("mujoco", CallingConvention = CallingConvention.Cdecl)]
+public static unsafe extern void mju_boxQPmalloc(double** res, double** R, int** index, double** H, double** g, int n, double** lower, double** upper);
+
 [DllImport("mujoco", CallingConvention = CallingConvention.Cdecl)]
 public static unsafe extern double mju_muscleGain(double len, double vel, double* lengthrange, double acc0, double* prm);