diff --git a/src/uproot/models/RNTuple.py b/src/uproot/models/RNTuple.py
index b26f9666a..6652aec29 100644
--- a/src/uproot/models/RNTuple.py
+++ b/src/uproot/models/RNTuple.py
@@ -839,6 +839,7 @@ def read_col_page(self, ncol, cluster_i):
             res = min_value + res.astype(numpy.float32) * (max_value - min_value) / (
                 (1 << nbits) - 1
             )
+            res = res.astype(numpy.float32)
         return res
 
     def arrays(