diff --git a/drivers/dma/sh/shdma-r8a73a4.c b/drivers/dma/sh/shdma-r8a73a4.c
index 4fb99970a3ea..96ea3828c3eb 100644
--- a/drivers/dma/sh/shdma-r8a73a4.c
+++ b/drivers/dma/sh/shdma-r8a73a4.c
@@ -11,7 +11,7 @@
 
 #include "shdma-arm.h"
 
-const unsigned int dma_ts_shift[] = SH_DMAE_TS_SHIFT;
+static const unsigned int dma_ts_shift[] = SH_DMAE_TS_SHIFT;
 
 static const struct sh_dmae_slave_config dma_slaves[] = {
 	{