diff --git a/lib/Frontend/FrontendActions.cpp b/lib/Frontend/FrontendActions.cpp
index 5dabe81..a97a32b 100644
--- a/lib/Frontend/FrontendActions.cpp
+++ b/lib/Frontend/FrontendActions.cpp
@@ -161,7 +161,8 @@
     llvm::error_code EC;
     llvm::SmallString<128> DirNative;
     llvm::sys::path::native(UmbrellaDir->getName(), DirNative);
-    for (llvm::sys::fs::directory_iterator Dir(DirNative.str(), EC), DirEnd;
+    for (llvm::sys::fs::recursive_directory_iterator Dir(DirNative.str(), EC), 
+                                                     DirEnd;
          Dir != DirEnd && !EC; Dir.increment(EC)) {
       // Check whether this entry has an extension typically associated with 
       // headers.
diff --git a/test/Modules/Inputs/NoUmbrella.framework/Headers/SubDir/C.h b/test/Modules/Inputs/NoUmbrella.framework/Headers/SubDir/C.h
new file mode 100644
index 0000000..4a9351a
--- /dev/null
+++ b/test/Modules/Inputs/NoUmbrella.framework/Headers/SubDir/C.h
@@ -0,0 +1 @@
+int no_umbrella_C;
diff --git a/test/Modules/auto-module-import.m b/test/Modules/auto-module-import.m
index d59099f..21e7968 100644
--- a/test/Modules/auto-module-import.m
+++ b/test/Modules/auto-module-import.m
@@ -28,6 +28,10 @@
 #include <NoUmbrella/A.h> // expected-warning{{treating #include as an import of module 'NoUmbrella.A'}}
 int getNoUmbrellaA() { return no_umbrella_A; } 
 
+// Test umbrella-less submodule includes
+#include <NoUmbrella/SubDir/C.h> // expected-warning{{treating #include as an import of module 'NoUmbrella.SubDir.C'}}
+int getNoUmbrellaC() { return no_umbrella_C; } 
+
 // Test header cross-subframework include pattern.
 #include <DependsOnModule/../Frameworks/SubFramework.framework/Headers/Other.h> // expected-warning{{treating #include as an import of module 'DependsOnModule.SubFramework.Other'}}