diff --git a/sdk/software/examples/matmul_test/main.c b/sdk/software/examples/matmul_test/main.c
index c510084..c6c278e 100644
--- a/sdk/software/examples/matmul_test/main.c
+++ b/sdk/software/examples/matmul_test/main.c
@@ -39,7 +39,7 @@ unsigned long CORE_CLOCKS_PER_SEC   = 33000000L;
 #define DST_BASE          (SRC_BASE + N_GROUPS * 32)   /* result region start */
 
 /* ─── MATMUL IP register map ─────────────────────────────────────── */
-#define MATMUL_BASE       0x1f500000
+#define MATMUL_BASE       0xbf500000
 
 #define MATMUL_CTRL       (MATMUL_BASE + 0x000)
 #define MATMUL_STATUS     (MATMUL_BASE + 0x004)