diff --git a/src/da65/config.c b/src/da65/config.c
index eaa64612c..d76aa6993 100644
--- a/src/da65/config.c
+++ b/src/da65/config.c
@@ -291,7 +291,7 @@ static void LabelSection (void)
 	       	    CfgError ("Size already given");
 	       	}
 	       	CfgAssureInt ();
-		CfgRangeCheck (1, 0x800);
+		CfgRangeCheck (1, 0x10000);
 	       	Size = CfgIVal;
 	       	CfgNextTok ();
 	       	break;
@@ -313,6 +313,9 @@ static void LabelSection (void)
 	/* Use default */
 	Size = 1;
     }
+    if (Value + Size > 0x10000) {
+	CfgError ("Invalid size (address out of range)");
+    }
     if (HaveLabel ((unsigned) Value)) {
 	CfgError ("Label for address $%04lX already defined", Value);
     }