diff --git a/direct/src/tkpanels/AnimPanel.py b/direct/src/tkpanels/AnimPanel.py
index a8348c299d..ca5cbe0d25 100644
--- a/direct/src/tkpanels/AnimPanel.py
+++ b/direct/src/tkpanels/AnimPanel.py
@@ -276,7 +276,7 @@ class AnimPanel(AppShell):
             title = 'Load Animation',
             parent = self.component('hull')
             )
-        if not animFilename:
+        if not animFilename and animFilename != 'None':
             # no file selected, canceled
             return
 
diff --git a/direct/src/tkpanels/MopathRecorder.py b/direct/src/tkpanels/MopathRecorder.py
index 8ff2341865..1cf65cd0aa 100644
--- a/direct/src/tkpanels/MopathRecorder.py
+++ b/direct/src/tkpanels/MopathRecorder.py
@@ -1638,7 +1638,7 @@ class MopathRecorder(AppShell, DirectObject):
             initialdir = path,
             title = 'Load Nurbs Curve',
             parent = self.parent)
-        if mopathFilename:
+        if mopathFilename and mopathFilename != 'None':
             self.reset()
             nodePath = loader.loadModel(
                 Filename.fromOsSpecific(mopathFilename))
diff --git a/direct/src/tkpanels/ParticlePanel.py b/direct/src/tkpanels/ParticlePanel.py
index b7a632f61a..d82677b5e5 100644
--- a/direct/src/tkpanels/ParticlePanel.py
+++ b/direct/src/tkpanels/ParticlePanel.py
@@ -1272,7 +1272,7 @@ class ParticlePanel(AppShell):
             initialdir = path,
             title = 'Load Particle Effect',
             parent = self.parent)
-        if particleFilename:
+        if particleFilename and particleFilename != 'None':
             # Delete existing particles and forces
             self.particleEffect.loadConfig(
                 Filename.fromOsSpecific(particleFilename))