diff --git a/hw/kdrive/src/kdrive.c b/hw/kdrive/src/kdrive.c
index f8949bec3..382968420 100644
--- a/hw/kdrive/src/kdrive.c
+++ b/hw/kdrive/src/kdrive.c
@@ -328,7 +328,8 @@ KdParseScreen(KdScreenInfo * screen, const char *arg)
             screen->height = pixels;
             screen->height_mm = mm;
         }
-        if (delim != 'x' && delim != '@' && delim != 'X' && delim != 'Y')
+        if (delim != 'x' && delim != '@' && delim != 'X' && delim != 'Y' &&
+            (delim != '\0' || i == 0))
             return;
     }