diff --git a/smithy-aws-iam-traits/src/main/java/software/amazon/smithy/aws/iam/traits/ConditionKeysTrait.java b/smithy-aws-iam-traits/src/main/java/software/amazon/smithy/aws/iam/traits/ConditionKeysTrait.java
index 24dd3631434..d319095f007 100644
--- a/smithy-aws-iam-traits/src/main/java/software/amazon/smithy/aws/iam/traits/ConditionKeysTrait.java
+++ b/smithy-aws-iam-traits/src/main/java/software/amazon/smithy/aws/iam/traits/ConditionKeysTrait.java
@@ -48,9 +48,7 @@ public Provider() {
 
     @Override
     public Builder toBuilder() {
-        ConditionKeysTrait.Builder builder = builder().sourceLocation(getSourceLocation());
-        getValues().forEach(builder::addValue);
-        return builder;
+        return builder().sourceLocation(getSourceLocation()).values(getValues());
     }
 
     public static final class Builder extends StringListTrait.Builder<ConditionKeysTrait, Builder> {
diff --git a/smithy-aws-iam-traits/src/main/java/software/amazon/smithy/aws/iam/traits/RequiredActionsTrait.java b/smithy-aws-iam-traits/src/main/java/software/amazon/smithy/aws/iam/traits/RequiredActionsTrait.java
index 7800636240e..4a434b1b7c7 100644
--- a/smithy-aws-iam-traits/src/main/java/software/amazon/smithy/aws/iam/traits/RequiredActionsTrait.java
+++ b/smithy-aws-iam-traits/src/main/java/software/amazon/smithy/aws/iam/traits/RequiredActionsTrait.java
@@ -45,9 +45,7 @@ public static Builder builder() {
 
     @Override
     public Builder toBuilder() {
-        Builder builder = builder().sourceLocation(getSourceLocation());
-        getValues().forEach(builder::addValue);
-        return builder;
+        return builder().sourceLocation(getSourceLocation()).values(getValues());
     }
 
     public static final class Builder extends StringListTrait.Builder<RequiredActionsTrait, Builder> {
diff --git a/smithy-model/src/main/java/software/amazon/smithy/model/traits/StringListTrait.java b/smithy-model/src/main/java/software/amazon/smithy/model/traits/StringListTrait.java
index 5ba2dafc556..64d80238916 100644
--- a/smithy-model/src/main/java/software/amazon/smithy/model/traits/StringListTrait.java
+++ b/smithy-model/src/main/java/software/amazon/smithy/model/traits/StringListTrait.java
@@ -46,7 +46,11 @@ public StringListTrait(ShapeId id, List<String> values, FromSourceLocation sourc
 
     @Override
     protected final Node createNode() {
-        return ArrayNode.fromStrings(values);
+        List<Node> nodes = new ArrayList<>(values.size());
+        for (String value : values) {
+            nodes.add(Node.from(value));
+        }
+        return new ArrayNode(nodes, getSourceLocation());
     }
 
     /**
diff --git a/smithy-model/src/main/java/software/amazon/smithy/model/traits/TagsTrait.java b/smithy-model/src/main/java/software/amazon/smithy/model/traits/TagsTrait.java
index f3f47a89395..b60943f7695 100644
--- a/smithy-model/src/main/java/software/amazon/smithy/model/traits/TagsTrait.java
+++ b/smithy-model/src/main/java/software/amazon/smithy/model/traits/TagsTrait.java
@@ -39,7 +39,7 @@ public Provider() {
 
     @Override
     public Builder toBuilder() {
-        return builder().values(getValues());
+        return builder().sourceLocation(getSourceLocation()).values(getValues());
     }
 
     public static Builder builder() {
diff --git a/smithy-model/src/test/java/software/amazon/smithy/model/traits/TagsTraitTest.java b/smithy-model/src/test/java/software/amazon/smithy/model/traits/TagsTraitTest.java
index 9e72549418a..65d0f2bc7f5 100644
--- a/smithy-model/src/test/java/software/amazon/smithy/model/traits/TagsTraitTest.java
+++ b/smithy-model/src/test/java/software/amazon/smithy/model/traits/TagsTraitTest.java
@@ -23,8 +23,12 @@
 
 import java.util.Optional;
 import org.junit.jupiter.api.Test;
+import software.amazon.smithy.model.SourceLocation;
+import software.amazon.smithy.model.node.ArrayNode;
 import software.amazon.smithy.model.node.Node;
+import software.amazon.smithy.model.node.StringNode;
 import software.amazon.smithy.model.shapes.ShapeId;
+import software.amazon.smithy.utils.ListUtils;
 
 public class TagsTraitTest {
     @Test
@@ -40,4 +44,18 @@ public void loadsTrait() {
         assertThat(tagsTrait.getValues(), contains("experimental"));
         assertThat(tagsTrait.toNode(), equalTo(node));
     }
+
+    @Test
+    public void hasSourceLocation() {
+        SourceLocation location1 = new SourceLocation("/foo.smithy", 1, 1);
+        SourceLocation location2 = new SourceLocation("/foo.smithy", 1, 2);
+        ArrayNode node = new ArrayNode(ListUtils.of(new StringNode("a", location1)), location2);
+        ShapeId id = ShapeId.from("ns.qux#foo");
+        TraitFactory provider = TraitFactory.createServiceFactory();
+        Optional<Trait> trait = provider.createTrait(ShapeId.from("smithy.api#tags"), id, node);
+
+        assertTrue(trait.isPresent());
+        assertThat(trait.get().getSourceLocation(), equalTo(location2));
+        assertThat(trait.get().toNode().getSourceLocation(), equalTo(location2));
+    }
 }