diff --git a/cfg/sym1-32k.cfg b/cfg/sym1-32k.cfg
index ad0d760f3..7949375d3 100644
--- a/cfg/sym1-32k.cfg
+++ b/cfg/sym1-32k.cfg
@@ -29,7 +29,7 @@ MEMORY {
     EXT:      file = "", define = yes, start = $9000, size = $1000;
     IO:       file = "", define = yes, start = $A000, size = $1000;
     RAE1:     file = "", define = yes, start = $B000, size = $1000;
-    BASROM:   file = "", define = yes, start = $C000, size = $1000;
+    BASROM:   file = "", define = yes, start = $C000, size = $2000;
     RAE2:     file = "", define = yes, start = $E000, size = $1000;
     TOP:      file = "", define = yes, start = $F000, size = $1000;
 }
diff --git a/cfg/sym1-4k.cfg b/cfg/sym1-4k.cfg
index 32d3cbb3a..468a76fe0 100644
--- a/cfg/sym1-4k.cfg
+++ b/cfg/sym1-4k.cfg
@@ -29,7 +29,7 @@ MEMORY {
     EXT:      file = "", define = yes, start = $9000, size = $1000;
     IO:       file = "", define = yes, start = $A000, size = $1000;
     RAE1:     file = "", define = yes, start = $B000, size = $1000;
-    BASROM:   file = "", define = yes, start = $C000, size = $1000;
+    BASROM:   file = "", define = yes, start = $C000, size = $2000;
     RAE2:     file = "", define = yes, start = $E000, size = $1000;
     TOP:      file = "", define = yes, start = $F000, size = $1000;
 }
diff --git a/cfg/sym1.cfg b/cfg/sym1.cfg
index 32d3cbb3a..468a76fe0 100644
--- a/cfg/sym1.cfg
+++ b/cfg/sym1.cfg
@@ -29,7 +29,7 @@ MEMORY {
     EXT:      file = "", define = yes, start = $9000, size = $1000;
     IO:       file = "", define = yes, start = $A000, size = $1000;
     RAE1:     file = "", define = yes, start = $B000, size = $1000;
-    BASROM:   file = "", define = yes, start = $C000, size = $1000;
+    BASROM:   file = "", define = yes, start = $C000, size = $2000;
     RAE2:     file = "", define = yes, start = $E000, size = $1000;
     TOP:      file = "", define = yes, start = $F000, size = $1000;
 }