diff --git a/thirdparty/quazip/quazip/CMakeLists.txt b/thirdparty/quazip/quazip/CMakeLists.txt
index 3385d5414..63255865c 100644
--- a/thirdparty/quazip/quazip/CMakeLists.txt
+++ b/thirdparty/quazip/quazip/CMakeLists.txt
@@ -3,6 +3,13 @@ file(GLOB PUBLIC_HEADERS "*.h")
 qt4_wrap_cpp(MOC_SRCS ${PUBLIC_HEADERS})
 set(SRCS ${SRCS} ${MOC_SRCS})
 
-add_library(quazip STATIC ${SRCS})
+add_definitions( -DQUAZIP_BUILD )
+
+IF(WIN32)
+    add_library(quazip SHARED ${SRCS})
+ELSE()
+    add_library(quazip STATIC ${SRCS})
+ENDIF()
+
 set_target_properties(quazip PROPERTIES VERSION 1 SOVERSION 1.0.0)
 target_link_libraries(quazip ${QT_QTMAIN_LIBRARY} ${QT_QTCORE_LIBRARY} -lz)