diff --git a/config/initializers/sentry.rb b/config/initializers/sentry.rb
index 3a8276ac..e87be344 100644
--- a/config/initializers/sentry.rb
+++ b/config/initializers/sentry.rb
@@ -4,7 +4,7 @@ Sentry.init do |config|
 
   # To activate performance monitoring, set one of these options.
   # We recommend adjusting the value in production:
-  config.traces_sample_rate = 0.5
+  config.traces_sample_rate = ENV.fetch('OSEM_SENTRY_TRACES_SAMPLE_RATE', '0.5').to_f
   # or
   # config.traces_sampler = lambda do |context|
   #  true