diff --git a/stl/utils.py b/stl/utils.py
index 025b9ca..79e8d12 100644
--- a/stl/utils.py
+++ b/stl/utils.py
@@ -121,12 +121,12 @@ def from_mtl(phi:MTL, ap_map:Dict[AtomicPred, LinEq]) -> STL:
     focus = AP_lens(phi)
     return focus.modify(ap_map.get)
 
+def _lineq_lipschitz(lineq):
+    return sum(map(abs, lens(lineq).terms.each_().coeff.get_all()))
+
 def linear_stl_lipschitz(phi):
-    r = max(abs(c) for c in terms_lens(phi).coeff.get_all())
-    try:
-        return float(r)
-    except TypeError:
-        return r
+    """Infinity norm lipschitz bound of linear inequality predicate."""
+    return float(max(map(_lineq_lipschitz, lineq_lens(phi).get_all())))
 
 # EDSL