diff --git a/test/ExecutionEngine/MCJIT/lit.local.cfg b/test/ExecutionEngine/MCJIT/lit.local.cfg
index 420d9551bda..af3d13f7467 100644
--- a/test/ExecutionEngine/MCJIT/lit.local.cfg
+++ b/test/ExecutionEngine/MCJIT/lit.local.cfg
@@ -16,5 +16,5 @@ else:
 if root.host_arch not in ['x86', 'x86_64', 'ARM', 'Mips']:
     config.unsupported = True
 
-if root.host_os in ['Cygwin', 'Darwin']:
+if root.host_os in ['Darwin']:
     config.unsupported = True
diff --git a/test/lit.cfg b/test/lit.cfg
index d81563373d0..dc37317ba95 100644
--- a/test/lit.cfg
+++ b/test/lit.cfg
@@ -142,7 +142,7 @@ if config.test_exec_root is None:
 # Provide a target triple for mcjit tests
 mcjit_triple = config.target_triple
 # Force ELF format on Windows
-if re.search(r'mingw32|win32', mcjit_triple):
+if re.search(r'cygwin|mingw32|win32', mcjit_triple):
   mcjit_triple += "-elf"
 config.substitutions.append( ('%mcjit_triple', mcjit_triple) )