diff --git a/samples/geos/filesel.c b/samples/geos/filesel.c
index 01aba6b92..c0a591eb9 100644
--- a/samples/geos/filesel.c
+++ b/samples/geos/filesel.c
@@ -18,7 +18,7 @@ void main (void)
 {
     r0=(int)fName;
 
-    DlgBoxOk(CBOLDON "You now will be presented", "with apps list" CPLAINTEXT);
+    DlgBoxOk(CBOLDON "You now will be presented", "with an apps list" CPLAINTEXT);
     DlgBoxFileSelect("", APPLICATION, fName);
     DlgBoxOk("You've chosen:" CBOLDON, fName);
 }