diff --git a/unitTests/CMakeLists.txt b/unitTests/CMakeLists.txt
index 2d3f2e54..efb6bae0 100644
--- a/unitTests/CMakeLists.txt
+++ b/unitTests/CMakeLists.txt
@@ -7,3 +7,8 @@ target_link_libraries(unit_tests
         exiv2lib
         GTest::GTest
 )
+
+target_compile_definitions(unit_tests
+    PRIVATE
+        GTEST_LINKED_AS_SHARED_LIBRARY=1
+)