diff --git a/PyLoT.py b/PyLoT.py
index 2e4917f8..7dbb60bb 100755
--- a/PyLoT.py
+++ b/PyLoT.py
@@ -3426,7 +3426,7 @@ class MainWindow(QMainWindow):
             print("Network local magnitude: %4.1f" % net_ml.mag)
         if magscaling is None:
             scaling = False
-        elif magscaling[0] != 0 and magscaling[1] != 0:
+        elif magscaling[0] == 0.0 and magscaling[1] == 0.0:
             scaling = False
         else:
             scaling = True
diff --git a/pylot/core/analysis/magnitude.py b/pylot/core/analysis/magnitude.py
index a8bb8536..936d5c01 100644
--- a/pylot/core/analysis/magnitude.py
+++ b/pylot/core/analysis/magnitude.py
@@ -132,7 +132,7 @@ class Magnitude(object):
                 scaling = False
             else:
                 scaling = True
-            if scaling:
+            if scaling == True:
                 # scaling necessary
                 print("Scaling network magnitude ...")
                 mag = ope.Magnitude(