diff --git a/drivers/mtd/sst26.c b/drivers/mtd/sst26.c
index b249af904ff..6a55152118a 100644
--- a/drivers/mtd/sst26.c
+++ b/drivers/mtd/sst26.c
@@ -97,7 +97,7 @@
 #endif
 
 #ifndef CONFIG_SST26_MEMORY_TYPE
-#  define CONFIG_SST26_MEMORY_TYPE  0x25
+#  define CONFIG_SST26_MEMORY_TYPE  0x26
 #endif
 
 /* SST26 Registers *******************************************************************/