diff --git a/configure b/configure
index ad2298535c..52c1ff73ad 100755
--- a/configure
+++ b/configure
@@ -18417,7 +18417,7 @@ case "$wxWITH_DPI_MANIFEST" in
         USE_DPI_AWARE_MANIFEST=0 ;;
     system)
         USE_DPI_AWARE_MANIFEST=1 ;;
-    per-monitor)
+    ''|per-monitor)
         USE_DPI_AWARE_MANIFEST=2 ;;
     *)
         USE_DPI_AWARE_MANIFEST=0
diff --git a/configure.in b/configure.in
index 3dee781f6a..f7597a2c48 100644
--- a/configure.in
+++ b/configure.in
@@ -1131,7 +1131,7 @@ case "$wxWITH_DPI_MANIFEST" in
         USE_DPI_AWARE_MANIFEST=0 ;;
     system)
         USE_DPI_AWARE_MANIFEST=1 ;;
-    per-monitor)
+    ''|per-monitor)
         USE_DPI_AWARE_MANIFEST=2 ;;
     *)
         USE_DPI_AWARE_MANIFEST=0