diff --git a/firmware/app.lds b/firmware/app.lds
index 3cbf38210e..c6149252cb 100644
--- a/firmware/app.lds
+++ b/firmware/app.lds
@@ -2,9 +2,11 @@ ENTRY(start)
 OUTPUT_FORMAT(elf32-sh)
 INPUT(crt0.o)
 
+#define DRAMSIZE (MEMORYSIZE * 0x100000)
+
 MEMORY
 {
-   DRAM : ORIGIN = 0x09000000, LENGTH = 0x200000
+   DRAM : ORIGIN = 0x09000000, LENGTH = DRAMSIZE
    IRAM : ORIGIN = 0x0f000000, LENGTH = 0x1000
 }