diff --git a/tests/run.sh.in b/tests/run.sh.in
index 0661999..8a87cc2 100644
--- a/tests/run.sh.in
+++ b/tests/run.sh.in
@@ -41,7 +41,7 @@ run_test() {
 	done=$(( done + 1 ))
 }
 
-selfdir=@abs_srcdir@
+selfdir="@abs_srcdir@"
 
 PATH_SEP=":"
 SYSROOT_DIR="${selfdir}/test"