diff --git a/server/src/main/java/org/elasticsearch/search/fetch/StoredFieldsSpec.java b/server/src/main/java/org/elasticsearch/search/fetch/StoredFieldsSpec.java
index f5eee3d8d5502..fcf5d474a8184 100644
--- a/server/src/main/java/org/elasticsearch/search/fetch/StoredFieldsSpec.java
+++ b/server/src/main/java/org/elasticsearch/search/fetch/StoredFieldsSpec.java
@@ -82,9 +82,17 @@ public StoredFieldsSpec merge(StoredFieldsSpec other) {
             mergedSourcePaths = new HashSet<>(this.sourcePaths);
             mergedSourcePaths.addAll(other.sourcePaths);
         } else if (this.sourcePaths.isEmpty() == false) {
-            mergedSourcePaths = this.sourcePaths;
+            if (other.requiresSource) {
+                mergedSourcePaths = Set.of();
+            } else {
+                mergedSourcePaths = this.sourcePaths;
+            }
         } else if (other.sourcePaths.isEmpty() == false) {
-            mergedSourcePaths = other.sourcePaths;
+            if (this.requiresSource) {
+                mergedSourcePaths = Set.of();
+            } else {
+                mergedSourcePaths = other.sourcePaths;
+            }
         } else {
             mergedSourcePaths = Set.of();
         }
diff --git a/server/src/test/java/org/elasticsearch/search/fetch/StoredFieldsSpecTests.java b/server/src/test/java/org/elasticsearch/search/fetch/StoredFieldsSpecTests.java
index 7c66d91ac7a0a..d322e552d8899 100644
--- a/server/src/test/java/org/elasticsearch/search/fetch/StoredFieldsSpecTests.java
+++ b/server/src/test/java/org/elasticsearch/search/fetch/StoredFieldsSpecTests.java
@@ -120,7 +120,7 @@ public void testMergeSourcePaths() {
 
         spec = spec.merge(
             new StoredFieldsSpec(
-                true,
+                false,
                 false,
                 Set.of("other_field"),
                 IgnoredSourceFieldMapper.IgnoredSourceFormat.NO_IGNORED_SOURCE,
@@ -133,6 +133,16 @@ public void testMergeSourcePaths() {
         assertThat(spec.requiredStoredFields(), containsInAnyOrder("other_field"));
         assertThat(spec.sourcePaths(), containsInAnyOrder("cat", "dog", "hamster"));
         assertThat(spec.sourcePaths(), sameInstance(pref));
+
+        // Clears source paths, because the spec requires complete source (since no source paths are defined)
+        spec = spec.merge(
+            new StoredFieldsSpec(true, false, Set.of(), IgnoredSourceFieldMapper.IgnoredSourceFormat.NO_IGNORED_SOURCE, Set.of())
+        );
+        assertThat(spec.ignoredSourceFormat(), equalTo(IgnoredSourceFieldMapper.IgnoredSourceFormat.NO_IGNORED_SOURCE));
+        assertThat(spec.requiresSource(), equalTo(true));
+        assertThat(spec.requiresMetadata(), equalTo(false));
+        assertThat(spec.requiredStoredFields(), containsInAnyOrder("other_field"));
+        assertThat(spec.sourcePaths(), empty());
     }
 
     private static SearchContext searchContext(SearchSourceBuilder sourceBuilder) {
diff --git a/x-pack/plugin/src/yamlRestTest/resources/rest-api-spec/test/esql/140_metadata.yml b/x-pack/plugin/src/yamlRestTest/resources/rest-api-spec/test/esql/140_metadata.yml
index 35cfbac5e3439..e8aab61ddb6f3 100644
--- a/x-pack/plugin/src/yamlRestTest/resources/rest-api-spec/test/esql/140_metadata.yml
+++ b/x-pack/plugin/src/yamlRestTest/resources/rest-api-spec/test/esql/140_metadata.yml
@@ -210,3 +210,35 @@ setup:
     "keyword" : "ok",
     "case" : "ok"
   }}
+
+---
+"source meta field and dynamic false":
+  - do:
+      indices.create:
+        index: my-index2
+        body:
+          mappings:
+            dynamic: false
+            properties:
+              foo:
+                type: text
+
+  - do:
+      bulk:
+        index: my-index2
+        refresh: true
+        body:
+          - { "index": { } }
+          - { "baz": "dasd" }
+  - do:
+      esql.query:
+        body:
+          query: 'FROM my-index2 METADATA _source | LIMIT 10'
+
+  - match: {columns.0.name: "foo"}
+  - match: {columns.0.type: "text"}
+  - match: {columns.1.name: "_source"}
+  - match: {columns.1.type: "_source"}
+
+  - match: {values.0.0: null}
+  - match: {values.0.1: { "baz": "dasd" }}