diff --git a/diff/config.go b/diff/config.go
index 4e516f52..e3052c8e 100644
--- a/diff/config.go
+++ b/diff/config.go
@@ -13,7 +13,6 @@ type Config struct {
 	PathPrefixRevision      string
 	PathStripPrefixBase     string
 	PathStripPrefixRevision string
-	DeprecationDays         int
 	ExcludeElements         utils.StringSet
 	IncludePathParams       bool
 }
diff --git a/internal/changelog_flags.go b/internal/changelog_flags.go
index 1348e93b..ecb2ac22 100644
--- a/internal/changelog_flags.go
+++ b/internal/changelog_flags.go
@@ -23,7 +23,6 @@ type ChangelogFlags struct {
 	lang                     string
 	errIgnoreFile            string
 	warnIgnoreFile           string
-	deprecationDays          int
 	deprecationDaysBeta      int
 	deprecationDaysStable    int
 }
@@ -37,7 +36,6 @@ func (flags *ChangelogFlags) toConfig() *diff.Config {
 	config.PathStripPrefixBase = flags.stripPrefixBase
 	config.PathStripPrefixRevision = flags.stripPrefixRevision
 	config.IncludePathParams = flags.includePathParams
-	config.DeprecationDays = flags.deprecationDays
 
 	return config
 }