diff --git a/tests/host/common/littlefs_mock.cpp b/tests/host/common/littlefs_mock.cpp
index 0f21d7f71..73629787a 100644
--- a/tests/host/common/littlefs_mock.cpp
+++ b/tests/host/common/littlefs_mock.cpp
@@ -95,7 +95,7 @@ void LittleFSMock::load ()
     if (flen != (off_t)m_fs.size())
     {
         fprintf(stderr, "LittleFS: size of '%s': %d does not match requested size %zd\n", m_storage.c_str(), (int)flen, m_fs.size());
-        if (!m_overwrite)
+        if (!m_overwrite && flen > 0)
         {
             fprintf(stderr, "LittleFS: aborting at user request\n");
             exit(1);
diff --git a/tests/host/common/spiffs_mock.cpp b/tests/host/common/spiffs_mock.cpp
index 8e7362619..d32c56d9d 100644
--- a/tests/host/common/spiffs_mock.cpp
+++ b/tests/host/common/spiffs_mock.cpp
@@ -94,7 +94,7 @@ void SpiffsMock::load ()
     if (flen != (off_t)m_fs.size())
     {
         fprintf(stderr, "SPIFFS: size of '%s': %d does not match requested size %zd\n", m_storage.c_str(), (int)flen, m_fs.size());
-        if (!m_overwrite)
+        if (!m_overwrite && flen > 0)
         {
             fprintf(stderr, "SPIFFS: aborting at user request\n");
             exit(1);