diff --git a/features/storage/FEATURE_STORAGE/TESTS/cfstore/example1/example1.cpp b/features/storage/FEATURE_STORAGE/TESTS/cfstore/example1/example1.cpp
index 6bab0ab509..6b017b3fcc 100644
--- a/features/storage/FEATURE_STORAGE/TESTS/cfstore/example1/example1.cpp
+++ b/features/storage/FEATURE_STORAGE/TESTS/cfstore/example1/example1.cpp
@@ -273,7 +273,7 @@ static int32_t cfstore_test_startup(void)
 #ifdef CFSTORE_CONFIG_BACKEND_FLASH_ENABLED
 
     int32_t ret = ARM_DRIVER_ERROR;
-    FlashJournal_t jrnl;
+    static FlashJournal_t jrnl;
     extern ARM_DRIVER_STORAGE ARM_Driver_Storage_(0);
     const ARM_DRIVER_STORAGE *drv = &ARM_Driver_Storage_(0);
 
diff --git a/features/storage/FEATURE_STORAGE/TESTS/cfstore/example5/example5.cpp b/features/storage/FEATURE_STORAGE/TESTS/cfstore/example5/example5.cpp
index fd6e2d4a7b..926c1eceb3 100644
--- a/features/storage/FEATURE_STORAGE/TESTS/cfstore/example5/example5.cpp
+++ b/features/storage/FEATURE_STORAGE/TESTS/cfstore/example5/example5.cpp
@@ -166,7 +166,7 @@ int32_t cfstore_test_startup(void)
 
 #ifdef CFSTORE_CONFIG_BACKEND_FLASH_ENABLED
     int32_t ret = ARM_DRIVER_ERROR;
-    FlashJournal_t jrnl;
+    static FlashJournal_t jrnl;
     extern ARM_DRIVER_STORAGE ARM_Driver_Storage_(0);
     const ARM_DRIVER_STORAGE *drv = &ARM_Driver_Storage_(0);
 
diff --git a/features/storage/FEATURE_STORAGE/cfstore/source/cfstore_test.c b/features/storage/FEATURE_STORAGE/cfstore/source/cfstore_test.c
index ed7311a4d2..700e4e4b25 100644
--- a/features/storage/FEATURE_STORAGE/cfstore/source/cfstore_test.c
+++ b/features/storage/FEATURE_STORAGE/cfstore/source/cfstore_test.c
@@ -256,7 +256,7 @@ int32_t cfstore_test_startup(void)
 
 #ifdef CFSTORE_CONFIG_BACKEND_FLASH_ENABLED
 
-    FlashJournal_t jrnl;
+    static FlashJournal_t jrnl;
     extern ARM_DRIVER_STORAGE ARM_Driver_Storage_(0);
     const ARM_DRIVER_STORAGE *drv = &ARM_Driver_Storage_(0);