diff --git a/cmake/speed-dreams-data.cmake.in b/cmake/speed-dreams-data.cmake.in
index 82f0d500..bafa8e4d 100644
--- a/cmake/speed-dreams-data.cmake.in
+++ b/cmake/speed-dreams-data.cmake.in
@@ -1,3 +1,4 @@
 @PACKAGE_INIT@
-set_and_check(SD_DATADIR "@PACKAGE_datadir@")
+set_and_check(SD_DATADIR_ABS "@PACKAGE_datadir@")
+set(SD_DATADIR "@datadir@")
 check_required_components(speed-dreams-data)