diff --git a/src/compiler/commandLineParser.ts b/src/compiler/commandLineParser.ts
index 11062983aaa..731a37a8cb7 100644
--- a/src/compiler/commandLineParser.ts
+++ b/src/compiler/commandLineParser.ts
@@ -448,6 +448,9 @@ namespace ts {
                             }
                             if (opt.isFilePath) {
                                 value = normalizePath(combinePaths(basePath, value));
+                                if (value === "") {
+                                    value = ".";
+                                }
                             }
                             options[opt.name] = value;
                         }
@@ -497,4 +500,4 @@ namespace ts {
             return fileNames;
         }
     }
-}
\ No newline at end of file
+}