diff --git a/Lib/statistics.py b/Lib/statistics.py
index 32fcf2313a8..01ca6c51daf 100644
--- a/Lib/statistics.py
+++ b/Lib/statistics.py
@@ -248,7 +248,7 @@ def geometric_mean(data):
             elif x == 0.0:
                 found_zero = True
             else:
-                raise StatisticsError('No negative inputs allowed', x)
+                raise StatisticsError(f'No negative inputs allowed: {x!r}')
 
     total = fsum(map(log, count_positive(data)))