diff --git a/features/storage/kvstore/conf/kv_config.cpp b/features/storage/kvstore/conf/kv_config.cpp
index 4f68173a75..88ee611a85 100644
--- a/features/storage/kvstore/conf/kv_config.cpp
+++ b/features/storage/kvstore/conf/kv_config.cpp
@@ -51,7 +51,7 @@
 #include "components/storage/blockdevice/COMPONENT_SD/SDBlockDevice.h"
 
 #if (STATIC_PINMAP_READY)
-constexpr spi_pinmap_t static_spi_pinmap = get_spi_pinmap(MBED_CONF_SD_SPI_MOSI, MBED_CONF_SD_SPI_MISO, MBED_CONF_SD_SPI_CLK, NC);
+const spi_pinmap_t static_spi_pinmap = get_spi_pinmap(MBED_CONF_SD_SPI_MOSI, MBED_CONF_SD_SPI_MISO, MBED_CONF_SD_SPI_CLK, NC);
 #endif
 #endif
 
diff --git a/features/storage/system_storage/SystemStorage.cpp b/features/storage/system_storage/SystemStorage.cpp
index 8ab9a73ecd..8ef0fab0e7 100644
--- a/features/storage/system_storage/SystemStorage.cpp
+++ b/features/storage/system_storage/SystemStorage.cpp
@@ -40,7 +40,7 @@
 #include "components/storage/blockdevice/COMPONENT_SD/SDBlockDevice.h"
 
 #if (STATIC_PINMAP_READY)
-constexpr spi_pinmap_t static_spi_pinmap = get_spi_pinmap(MBED_CONF_SD_SPI_MOSI, MBED_CONF_SD_SPI_MISO, MBED_CONF_SD_SPI_CLK, NC);
+const spi_pinmap_t static_spi_pinmap = get_spi_pinmap(MBED_CONF_SD_SPI_MOSI, MBED_CONF_SD_SPI_MISO, MBED_CONF_SD_SPI_CLK, NC);
 #endif
 #endif