diff --git a/src/CompResources.h b/src/CompResources.h
index a33317a64..a60a53bf0 100644
--- a/src/CompResources.h
+++ b/src/CompResources.h
@@ -59,7 +59,7 @@ class ATTR_DLL_LOCAL CCompResources
    * \brief Get the current screen info.
    * \return The screen info.
    */
-  ScreenInfo GetScreenInfo() { return m_screenInfo.load(); }
+  ScreenInfo GetScreenInfo() const { return m_screenInfo.load(); }
 
   /*!
    * \brief Set the screen info.
diff --git a/src/test/CMakeLists.txt b/src/test/CMakeLists.txt
index 2ed234956..5e5dd4811 100644
--- a/src/test/CMakeLists.txt
+++ b/src/test/CMakeLists.txt
@@ -53,7 +53,7 @@ add_executable(${BINARY}
     ../utils/XMLUtils.cpp
     )
 
-target_link_libraries(${BINARY} PRIVATE ${BENTO4_LIBRARIES} ${PUGIXML_LIBRARIES} ${GTEST_LIBRARIES} Threads::Threads ${CMAKE_DL_LIBS})
+target_link_libraries(${BINARY} PRIVATE ${BENTO4_LIBRARIES} ${PUGIXML_LIBRARIES} ${GTEST_LIBRARIES} Threads::Threads ${CMAKE_DL_LIBS} atomic)
 
 set(TEST_DATA_DIR "${CMAKE_SOURCE_DIR}/src/test/manifests")
 add_test(NAME manifest_tests COMMAND ${BINARY} "${TEST_DATA_DIR}")