diff --git a/macros.in b/macros.in
index 5155e2100..10f7622f6 100644
--- a/macros.in
+++ b/macros.in
@@ -164,7 +164,7 @@
 #	the script.  See the script for details.
 #
 %__debug_install_post   \
-   @RPMCONFIGDIR@/find-debuginfo.sh %{?_missing_build_ids_terminate_build:--strict-build-id} %{?_find_debuginfo_opts} %{_builddir}/%{?buildsubdir}\
+   @RPMCONFIGDIR@/find-debuginfo.sh %{?_missing_build_ids_terminate_build:--strict-build-id} %{?_find_debuginfo_opts} "%{_builddir}/%{?buildsubdir}"\
 %{nil}
 
 #	Template for debug information sub-package.