diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 482c98d..ecf6f34 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -69,6 +69,9 @@
 # Make scripts and data files needed for testing available in an
 # out-of-source build.
 if (NOT ${CMAKE_CURRENT_BINARY_DIR} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR})
+    if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/seedfile")
+        link_to_source(seedfile)
+    endif()
     link_to_source(compat.sh)
     link_to_source(data_files)
     link_to_source(scripts)