diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9d9f2260..44be66d9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Changelog
 
+## 3.4.1 Point Probe Value Format for Enumerated Legends HOTFIX
+
+### Hotfix
+* Deals with 'nan' value for enumerated legends.
+
 ## 3.4.0 Point Probe Value Format for Enumerated Legends
 
 ### Features
diff --git a/podpac/core/test/test_utils.py b/podpac/core/test/test_utils.py
index ed9f7e2f..05d2fcc6 100644
--- a/podpac/core/test/test_utils.py
+++ b/podpac/core/test/test_utils.py
@@ -715,9 +715,10 @@ def test_prober_with_enumerated_legends(self):
             enumeration_legend={0: "dirt", 1: "sand"},
             enumeration_colors={0: (0, 0, 0), 1: (0.5, 0.5, 0.5)},
         )
+        nan = podpac.data.Array(source=np.ones((3, 3), int) * np.nan, coordinates=self.coords, style=enumeration_style)
         one = podpac.data.Array(source=np.ones((3, 3), int), coordinates=self.coords, style=enumeration_style)
         zero = podpac.data.Array(source=np.zeros((3, 3), int), coordinates=self.coords, style=enumeration_style)
-        a = podpac.compositor.OrderedCompositor(sources=[one, zero], style=enumeration_style)
+        a = podpac.compositor.OrderedCompositor(sources=[nan, one, zero], style=enumeration_style)
 
         expected = {
             "name": "composited",
@@ -727,6 +728,14 @@ def test_prober_with_enumerated_legends(self):
             "params": {},
             "inputs": {
                 "inputs": [
+                    {
+                        "name": "composited",
+                        "value": "nan (unknown) my_units",
+                        "active": False,
+                        "node_id": nan.hash,
+                        "params": {},
+                        "inputs": {},
+                    },
                     {
                         "name": "composited",
                         "value": "1 (sand) my_units",
diff --git a/podpac/core/utils.py b/podpac/core/utils.py
index ae9e6181..82ded19f 100644
--- a/podpac/core/utils.py
+++ b/podpac/core/utils.py
@@ -569,7 +569,12 @@ def get_entry(key, out, definition):
     def format_value(value, style, add_enumeration_labels):
         if not add_enumeration_labels or style.enumeration_legend is None:
             return value
-        return str(int(value)) + " ({})".format(style.enumeration_legend[int(value)])
+        if np.isnan(value):
+            return str(value) + " (unknown)"
+        try:
+            return str(int(value)) + " ({})".format(style.enumeration_legend[int(value)])
+        except ValueError:
+            return str(value) + " (unknown)"
 
     c = [(v, d) for v, d in zip([lat, lon, time, alt], ["lat", "lon", "time", "alt"]) if v is not None]
     coords = podpac.Coordinates([[v[0]] for v in c], [[d[1]] for d in c], crs=crs)
diff --git a/podpac/version.py b/podpac/version.py
index d94e5a53..050a0bc1 100644
--- a/podpac/version.py
+++ b/podpac/version.py
@@ -17,7 +17,7 @@
 ##############
 MAJOR = 3
 MINOR = 4
-HOTFIX = 0
+HOTFIX = 1
 ##############