diff --git a/tests/pam/services/Makefile.am b/tests/pam/services/Makefile.am
index e53c53b..8477efb 100644
--- a/tests/pam/services/Makefile.am
+++ b/tests/pam/services/Makefile.am
@@ -1,7 +1,7 @@
 all-am: fprintd-pam-test
 
 fprintd-pam-test: fprintd-pam-test.in Makefile
-	sed -e "s|\@TOPBUILDDIR\@|$(abs_top_builddir)|" $< > $@
+	sed -e "s|\@FPRINTDPAMPATH\@|$(abs_top_builddir)/pam/.libs/pam_fprintd.so|" $< > $@
 
 EXTRA_DIST = fprintd-pam-test.in
 CLEANFILES = fprintd-pam-test
diff --git a/tests/pam/services/fprintd-pam-test.in b/tests/pam/services/fprintd-pam-test.in
index aacfc2b..f3fb5c3 100644
--- a/tests/pam/services/fprintd-pam-test.in
+++ b/tests/pam/services/fprintd-pam-test.in
@@ -1 +1 @@
-auth   required     @TOPBUILDDIR@/pam/.libs/pam_fprintd.so debug timeout=10
+auth   required     @FPRINTDPAMPATH@ debug timeout=10