diff --git a/forest/jasmine/data2mobmat.py b/forest/jasmine/data2mobmat.py
index 1818bef2..a93d8c64 100644
--- a/forest/jasmine/data2mobmat.py
+++ b/forest/jasmine/data2mobmat.py
@@ -1004,7 +1004,8 @@ def infer_mobmat(mobmat: np.ndarray, interval: float, r: float) -> np.ndarray:
         (mobmat, np.ones(n_rows).reshape(n_rows, 1))
     )
     # Append new pauses to the trajectory matrix
-    mobmat = np.vstack((mobmat, new_pauses_array))
+    if new_pauses_array.shape[0] > 0:
+        mobmat = np.vstack((mobmat, new_pauses_array))
     # Sort the matrix by start time
     mobmat = mobmat[mobmat[:, 3].argsort()].astype(float)