diff --git a/src/domain/graph/builder/stages/detect-changes.ts b/src/domain/graph/builder/stages/detect-changes.ts
index e6524cb2..d46a11ab 100644
--- a/src/domain/graph/builder/stages/detect-changes.ts
+++ b/src/domain/graph/builder/stages/detect-changes.ts
@@ -349,7 +349,7 @@ function findReverseDependencies(
     const changedArray = [...changedRelPaths];
     const nativeResults = nativeDb.findReverseDependencies(changedArray);
     for (const dep of nativeResults) {
-      const absPath = path.join(rootDir, dep);
+      const absPath = path.isAbsolute(dep) ? dep : path.join(rootDir, dep);
       if (fs.existsSync(absPath)) {
         reverseDeps.add(dep);
       }
@@ -366,7 +366,7 @@ function findReverseDependencies(
   for (const relPath of changedRelPaths) {
     for (const row of findReverseDepsStmt.all(relPath) as Array<{ file: string }>) {
       if (!changedRelPaths.has(row.file) && !reverseDeps.has(row.file)) {
-        const absPath = path.join(rootDir, row.file);
+        const absPath = path.isAbsolute(row.file) ? row.file : path.join(rootDir, row.file);
         if (fs.existsSync(absPath)) {
           reverseDeps.add(row.file);
         }
diff --git a/tests/search/embedding-strategy.test.ts b/tests/search/embedding-strategy.test.ts
index 58376569..ff0265c6 100644
--- a/tests/search/embedding-strategy.test.ts
+++ b/tests/search/embedding-strategy.test.ts
@@ -289,7 +289,7 @@ describe('FTS5 index built alongside embeddings', () => {
   });
 });
 
-describe('absolute file paths in DB (#760)', () => {
+describe('absolute file paths in DB (#752)', () => {
   let absDir: string, absDbPath: string;
 
   beforeAll(() => {
@@ -314,7 +314,7 @@ describe('absolute file paths in DB (#760)', () => {
     if (absDir) fs.rmSync(absDir, { recursive: true, force: true });
   });
 
-  test('produces embeddings when DB stores absolute paths', async () => {
+  test('produces embeddings when DB stores absolute paths (structured)', async () => {
     EMBEDDED_TEXTS.length = 0;
     await buildEmbeddings(absDir, 'minilm', absDbPath);
 
@@ -325,6 +325,14 @@ describe('absolute file paths in DB (#760)', () => {
     db.close();
     expect(count).toBe(1);
   });
+
+  test('produces embeddings when DB stores absolute paths (source)', async () => {
+    EMBEDDED_TEXTS.length = 0;
+    await buildEmbeddings(absDir, 'minilm', absDbPath, { strategy: 'source' });
+
+    expect(EMBEDDED_TEXTS.length).toBe(1);
+    expect(EMBEDDED_TEXTS[0]).toContain('add');
+  });
 });
 
 describe('context window overflow detection', () => {