diff --git a/lib/prop_check/generators.rb b/lib/prop_check/generators.rb
index f422e90..9ceb5d8 100644
--- a/lib/prop_check/generators.rb
+++ b/lib/prop_check/generators.rb
@@ -266,7 +266,7 @@ def positive_float
     end
 
     ##
-    # Generates positive floating point numbers
+    # Generates negative floating point numbers
     # Will generate special floats (except NaN) from time to time.
     # c.f. #float
     def negative_float