diff --git a/drivers/flash/soc_flash_nrf_rram.c b/drivers/flash/soc_flash_nrf_rram.c
index 35a6c98862c699..9bc32255a481de 100644
--- a/drivers/flash/soc_flash_nrf_rram.c
+++ b/drivers/flash/soc_flash_nrf_rram.c
@@ -302,6 +302,15 @@ static int nrf_rram_erase(const struct device *dev, off_t addr, size_t len)
 	return nrf_write(addr, NULL, len);
 }
 
+int nrf_rram_get_size(const struct device *dev, uint64_t *size)
+{
+	ARG_UNUSED(dev);
+
+	*size = RRAM_SIZE;
+
+	return 0;
+}
+
 static const struct flash_parameters *nrf_rram_get_parameters(const struct device *dev)
 {
 	ARG_UNUSED(dev);
@@ -337,6 +346,7 @@ static const struct flash_driver_api nrf_rram_api = {
 	.read = nrf_rram_read,
 	.write = nrf_rram_write,
 	.erase = nrf_rram_erase,
+	.get_size = nrf_rram_get_size,
 	.get_parameters = nrf_rram_get_parameters,
 #if defined(CONFIG_FLASH_PAGE_LAYOUT)
 	.page_layout = nrf_rram_page_layout,