diff --git a/histoprint/formatter.py b/histoprint/formatter.py
index 8ebd012..1a1848f 100644
--- a/histoprint/formatter.py
+++ b/histoprint/formatter.py
@@ -411,7 +411,7 @@ def format_histogram(self, counts):
         )
         hist_width = self.columns - axis_width
 
-        counts = np.array(counts)
+        counts = np.nan_to_num(np.array(counts))
         while counts.ndim < 2:
             # Make sure counts is a 2D array
             counts = counts[np.newaxis, ...]
diff --git a/tests/test.py b/tests/test.py
index 9752924..af1b234 100644
--- a/tests/test.py
+++ b/tests/test.py
@@ -47,6 +47,15 @@ def test_hist():
     )
 
 
+def test_nan():
+    """Test dealing with nan values."""
+
+    data = np.arange(7, dtype=float)
+    data[5] = np.nan
+    bins = np.arange(8)
+    print_hist((data, bins))
+
+
 def test_boost():
     """Test boost-histogram if it is available."""