diff --git a/CHANGELOG.md b/CHANGELOG.md
index e745a546..7e060be1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## Unreleased
+
+- Fixed a bug where tasks were sometimes incorrectly marked as internal ([#1007](https://github.com/go-task/task/pull/1007) by @pd93).
+
 ## v3.20.0 - 2023-01-14
 
 - Improve behavior and performance of status checking when using the
diff --git a/taskfile/included_taskfile.go b/taskfile/included_taskfile.go
index ef4ca06b..15653a3b 100644
--- a/taskfile/included_taskfile.go
+++ b/taskfile/included_taskfile.go
@@ -61,14 +61,6 @@ func (tfs *IncludedTaskfiles) Len() int {
 	return len(tfs.Keys)
 }
 
-// Merge merges the given IncludedTaskfiles into the caller one
-func (tfs *IncludedTaskfiles) Merge(other *IncludedTaskfiles) {
-	_ = other.Range(func(key string, value IncludedTaskfile) error {
-		tfs.Set(key, value)
-		return nil
-	})
-}
-
 // Set sets a value to a given key
 func (tfs *IncludedTaskfiles) Set(key string, includedTaskfile IncludedTaskfile) {
 	if tfs.Mapping == nil {
diff --git a/taskfile/merge.go b/taskfile/merge.go
index acf56bcc..6c805ea9 100644
--- a/taskfile/merge.go
+++ b/taskfile/merge.go
@@ -5,7 +5,7 @@ import (
 	"strings"
 )
 
-// NamespaceSeparator contains the character that separates namescapes
+// NamespaceSeparator contains the character that separates namespaces
 const NamespaceSeparator = ":"
 
 // Merge merges the second Taskfile into the first
@@ -21,11 +21,6 @@ func Merge(t1, t2 *Taskfile, includedTaskfile *IncludedTaskfile, namespaces ...s
 		t1.Output = t2.Output
 	}
 
-	if t1.Includes == nil {
-		t1.Includes = &IncludedTaskfiles{}
-	}
-	t1.Includes.Merge(t2.Includes)
-
 	if t1.Vars == nil {
 		t1.Vars = &Vars{}
 	}