diff --git a/src/main/cpp/src/histogram.hpp b/src/main/cpp/src/histogram.hpp
index 88601ebff8..2625b8705a 100644
--- a/src/main/cpp/src/histogram.hpp
+++ b/src/main/cpp/src/histogram.hpp
@@ -34,10 +34,6 @@ namespace spark_rapids_jni {
  * If the input columns are valid, a histogram will be created from them. Otherwise, an exception
  * will be thrown.
  *
- * There is special cases when the input frequencies are zero. They are still considered as valid,
- * but value-frequency pairs in which frequencies are zero will be ignored from copying into the
- * output.
- *
  * The output histogram is stored in a structs column in the form of `STRUCT<value, frequency>`.
  * If `output_as_lists == true`, each struct element is wrapped in a list, producing a
  * lists-of-structs column.