diff --git a/src/configure.in b/src/configure.in
index 18c7ff1..836d242 100644
--- a/src/configure.in
+++ b/src/configure.in
@@ -975,7 +975,7 @@
     [
      vi_cv_path_python3_conf=
      for path in "${vi_cv_path_python3_pfx}" "${vi_cv_path_python3_epfx}"; do
-       for subdir in lib share; do
+       for subdir in lib64 lib share; do
          d="${path}/${subdir}/python${vi_cv_var_python3_version}/config"
          if test -d "$d" && test -f "$d/config.c"; then
            vi_cv_path_python3_conf="$d"