diff --git a/types/tags.go b/types/tags.go
index 5a94e9bde8..95a826fd78 100644
--- a/types/tags.go
+++ b/types/tags.go
@@ -21,8 +21,8 @@ func (t Tags) AppendTag(k string, v []byte) Tags {
 }
 
 // Append two lists of tags
-func AppendTags(a, b Tags) Tags {
-	return append(a, b...)
+func (t Tags) AppendTags(a Tags) Tags {
+	return append(t, a...)
 }
 
 // New variadic tags, must be k string, v []byte repeating
diff --git a/types/tags_test.go b/types/tags_test.go
index 84dc10b33d..4ef5561240 100644
--- a/types/tags_test.go
+++ b/types/tags_test.go
@@ -9,7 +9,7 @@ import (
 func TestAppendTags(t *testing.T) {
 	a := NewTags("a", []byte("1"))
 	b := NewTags("b", []byte("2"))
-	c := AppendTags(a, b)
+	c := a.AppendTags(b)
 	require.Equal(t, c, Tags{MakeTag("a", []byte("1")), MakeTag("b", []byte("2"))})
 }
 
diff --git a/x/bank/keeper.go b/x/bank/keeper.go
index 8a73b964df..d23167c3c5 100644
--- a/x/bank/keeper.go
+++ b/x/bank/keeper.go
@@ -167,7 +167,7 @@ func sendCoins(ctx sdk.Context, am sdk.AccountMapper, fromAddr sdk.Address, toAd
 		return nil, err
 	}
 
-	return sdk.AppendTags(subTags, addTags), nil
+	return subTags.AppendTags(addTags), nil
 }
 
 // InputOutputCoins handles a list of inputs and outputs
@@ -180,7 +180,7 @@ func inputOutputCoins(ctx sdk.Context, am sdk.AccountMapper, inputs []Input, out
 		if err != nil {
 			return nil, err
 		}
-		allTags = sdk.AppendTags(allTags, tags)
+		allTags = allTags.AppendTags(tags)
 	}
 
 	for _, out := range outputs {
@@ -188,7 +188,7 @@ func inputOutputCoins(ctx sdk.Context, am sdk.AccountMapper, inputs []Input, out
 		if err != nil {
 			return nil, err
 		}
-		allTags = sdk.AppendTags(allTags, tags)
+		allTags = allTags.AppendTags(tags)
 	}
 
 	return allTags, nil