diff --git a/CMakeLists.txt b/CMakeLists.txt
index e782e38..14a1ae1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -191,7 +191,7 @@ if(CMAKE_SYSTEM_NAME MATCHES "HP-UX")
 	set(OPENSSL_LIBS ${OPENSSL_LIBS} pthread)
 endif()
 
-if(NOT (CMAKE_SYSTEM_NAME MATCHES "Darwin" OR MSVC))
+if(NOT (CMAKE_SYSTEM_NAME MATCHES "(Darwin|MINGW|CYGWIN)" OR MSVC))
 	set(BUILD_SHARED true)
 endif()