diff --git a/tests/lib.sh b/tests/lib.sh
index f71eb97..17bdf69 100644
--- a/tests/lib.sh
+++ b/tests/lib.sh
@@ -109,7 +109,7 @@ function buPrepareSRPM () {
     rlRun "export SRPM=$(find . -name '*.src.rpm')"
     rlRun "rpm -ivh --define=\"_topdir $TmpDir\" $SRPM"
 
-    rlRun "export SPECDIR=$(rpm --define=\"_topdir $TmpDir\" --eval=%_specdir)"
+    rlRun "export SPECDIR=$(rpm --define="_topdir $TmpDir" --eval=%_specdir)"
     rlRun "export SPECFILE=$(find "$SPECDIR/" -name '*.spec')"
 
     rlRun "yum-builddep -y --define=\"_topdir $TmpDir\" $builddep_options $SPECFILE"