diff --git a/tests/unittests/tests-littlefs/tests-littlefs.c b/tests/unittests/tests-littlefs/tests-littlefs.c
index e8030ef2d18ec11ea1aedcc51bffb05b59bde3b3..d1f224edc6b2bdaae668d330d7d0460d3be91905 100644
--- a/tests/unittests/tests-littlefs/tests-littlefs.c
+++ b/tests/unittests/tests-littlefs/tests-littlefs.c
@@ -31,13 +31,13 @@
 #else
 /* Test mock object implementing a simple RAM-based mtd */
 #ifndef SECTOR_COUNT
-#define SECTOR_COUNT 4
+#define SECTOR_COUNT 16
 #endif
 #ifndef PAGE_PER_SECTOR
-#define PAGE_PER_SECTOR 8
+#define PAGE_PER_SECTOR 4
 #endif
 #ifndef PAGE_SIZE
-#define PAGE_SIZE 128
+#define PAGE_SIZE 64
 #endif
 
 static uint8_t dummy_memory[PAGE_PER_SECTOR * PAGE_SIZE * SECTOR_COUNT];