diff --git a/src/spectator/config.cr b/src/spectator/config.cr
index 1d1a535..a877108 100644
--- a/src/spectator/config.cr
+++ b/src/spectator/config.cr
@@ -37,7 +37,7 @@ module Spectator
       @fail_blank = builder.fail_blank?
       @dry_run = builder.dry_run?
       @randomize = builder.randomize?
-      @random_seed = builder.seed
+      @random_seed = builder.random_seed
       @profile = builder.profile?
       @example_filter = builder.example_filter
     end
diff --git a/src/spectator/config_builder.cr b/src/spectator/config_builder.cr
index 8a4b044..3fb10cb 100644
--- a/src/spectator/config_builder.cr
+++ b/src/spectator/config_builder.cr
@@ -14,7 +14,7 @@ module Spectator
     end
 
     # Seed used for random number generation.
-    property seed : UInt64 = Random.rand(UInt64)
+    property random_seed : UInt64 = Random.rand(UInt64)
 
     @primary_formatter : Formatting::Formatter?
     @additional_formatters = [] of Formatting::Formatter