diff --git a/drivers/i2c/algos/i2c-algo-bit.c b/drivers/i2c/algos/i2c-algo-bit.c
index 48fe3a3..21c36bf 100644
--- a/drivers/i2c/algos/i2c-algo-bit.c
+++ b/drivers/i2c/algos/i2c-algo-bit.c
@@ -512,7 +512,7 @@
 
 /* -----exported algorithm data: -------------------------------------	*/
 
-static struct i2c_algorithm i2c_bit_algo = {
+static const struct i2c_algorithm i2c_bit_algo = {
 	.master_xfer	= bit_xfer,
 	.functionality	= bit_func,
 };
diff --git a/drivers/i2c/algos/i2c-algo-pca.c b/drivers/i2c/algos/i2c-algo-pca.c
index b88a6fc..9081c9f 100644
--- a/drivers/i2c/algos/i2c-algo-pca.c
+++ b/drivers/i2c/algos/i2c-algo-pca.c
@@ -355,7 +355,7 @@
 	return 0;
 }
 
-static struct i2c_algorithm pca_algo = {
+static const struct i2c_algorithm pca_algo = {
 	.master_xfer	= pca_xfer,
 	.functionality	= pca_func,
 };
diff --git a/drivers/i2c/algos/i2c-algo-pcf.c b/drivers/i2c/algos/i2c-algo-pcf.c
index 5b24930..3b20033 100644
--- a/drivers/i2c/algos/i2c-algo-pcf.c
+++ b/drivers/i2c/algos/i2c-algo-pcf.c
@@ -458,7 +458,7 @@
 
 /* -----exported algorithm data: -------------------------------------	*/
 
-static struct i2c_algorithm pcf_algo = {
+static const struct i2c_algorithm pcf_algo = {
 	.master_xfer	= pcf_xfer,
 	.functionality	= pcf_func,
 };
diff --git a/drivers/i2c/algos/i2c-algo-sgi.c b/drivers/i2c/algos/i2c-algo-sgi.c
index 932c4fa..490d999 100644
--- a/drivers/i2c/algos/i2c-algo-sgi.c
+++ b/drivers/i2c/algos/i2c-algo-sgi.c
@@ -157,7 +157,7 @@
 	return I2C_FUNC_SMBUS_EMUL;
 }
 
-static struct i2c_algorithm sgi_algo = {
+static const struct i2c_algorithm sgi_algo = {
 	.master_xfer	= sgi_xfer,
 	.functionality	= sgi_func,
 };