diff --git a/src/common.ts b/src/common.ts
index bfcca2a2..8b7b5947 100644
--- a/src/common.ts
+++ b/src/common.ts
@@ -118,16 +118,23 @@ export interface ExpectableValidationErrors {
 export function getProjectReflection(srcPath: PathLike): ProjectReflection {
   logger.info(`Generating project reflection for ${srcPath.toString()}.`);
 
+  const tsconfigPath = getTsconfigPath(srcPath.toString());
+
   // initialize new Typedoc application
   const app = new Application({
     excludeExternals: true,
     includeDeclarations: true,
     module: 'commonjs',
-    tsconfig: join(getTsconfigPath(srcPath.toString()), 'tsconfig.json'),
+    tsconfig: join(tsconfigPath, 'tsconfig.json'),
   });
 
+  let inputFilePath = srcPath;
+  if (inputFilePath === tsconfigPath) {
+    inputFilePath = join(tsconfigPath, 'src');
+  }
+
   // get input files
-  const inputFiles = app.expandInputFiles([srcPath.toString()]);
+  const inputFiles = app.expandInputFiles([inputFilePath.toString()]);
 
   // get project reflection from input files
   const result = app.convert(inputFiles);