diff --git a/external/CMakeLists.txt b/external/CMakeLists.txt
index 9d792d360..48082de23 100644
--- a/external/CMakeLists.txt
+++ b/external/CMakeLists.txt
@@ -795,7 +795,7 @@ if ((LINUX OR APPLE) AND (NOT LIBSIGMF_FOUND OR LIBSIGMF_EXTERNAL))
     set(LIBSIGMF_INCLUDE_DIR "${install_dir}/include" CACHE INTERNAL "")
     if (APPLE)
         install(FILES "${LIBSIGMF_LIBRARIES}" DESTINATION "${INSTALL_LIB_DIR}")
-        set(MACOS_EXTERNAL_LIBS_FIXUP "${MACOS_EXTERNAL_LIBS_FIXUP};${binary_dir}/")
+        set(MACOS_EXTERNAL_LIBS_FIXUP "${MACOS_EXTERNAL_LIBS_FIXUP};${EXTERNAL_BUILD_LIBRARIES}/lib")
     endif ()
 endif ((LINUX OR APPLE) AND (NOT LIBSIGMF_FOUND OR LIBSIGMF_EXTERNAL))