diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index ec773ae02..dfdf90b97 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -28,9 +28,11 @@
 # 
 # Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
 
-add_definitions(-DSTATICLIB)
-# miniupnp changed their static define
-add_definitions(-DMINIUPNP_STATICLIB)
+if (WIN32 AND STATIC)
+  add_definitions(-DSTATICLIB)
+  # miniupnp changed their static define
+  add_definitions(-DMINIUPNP_STATICLIB)
+endif ()
 
 function (bitmonero_private_headers group)
   source_group("${group}\\Private"
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 3da9fdb6b..0f99cab73 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -28,9 +28,11 @@
 # 
 # Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
 
-add_definitions(-DSTATICLIB)
-# miniupnp changed their static define
-add_definitions(-DMINIUPNP_STATICLIB)
+if (WIN32 AND STATIC)
+  add_definitions(-DSTATICLIB)
+  # miniupnp changed their static define
+  add_definitions(-DMINIUPNP_STATICLIB)
+endif ()
 
 find_package(GTest)