diff --git a/include/mujoco/mujoco.h b/include/mujoco/mujoco.h
index 135db7e1..8f0ffff8 100644
--- a/include/mujoco/mujoco.h
+++ b/include/mujoco/mujoco.h
@@ -1099,8 +1099,8 @@ MJAPI mjtNum mju_sigmoid(mjtNum x);
 //      B: (2*nv+na x nu)
 //      D: (nsensordata x 2*nv+na)
 //      C: (nsensordata x nu)
-void mjd_transitionFD(const mjModel* m, mjData* d, mjtNum eps, mjtByte centered,
-                      mjtNum* A, mjtNum* B, mjtNum* C, mjtNum* D);
+MJAPI void mjd_transitionFD(const mjModel* m, mjData* d, mjtNum eps, mjtByte centered,
+                            mjtNum* A, mjtNum* B, mjtNum* C, mjtNum* D);