diff --git a/examples/filesystem/Makefile b/examples/filesystem/Makefile
index 17dba14a91..0704f759a6 100644
--- a/examples/filesystem/Makefile
+++ b/examples/filesystem/Makefile
@@ -38,14 +38,4 @@ USEMODULE += littlefs
 USEMODULE += constfs
 # USEMODULE += devfs
 
-# Set file systems specific variables
-ifneq (,$(filter littlefs, $(USEMODULE)))
-    CFLAGS += -DVFS_FILE_BUFFER_SIZE=56 -DVFS_DIR_BUFFER_SIZE=44
-else ifneq (,$(filter spiffs, $(USEMODULE)))
-    SPIFFS_NB_FD ?= 8
-    CFLAGS += '-DSPIFFS_FS_FD_SPACE_SIZE=(32 * $(SPIFFS_NB_FD))'
-else ifneq (,$(filter fatfs_vfs, $(USEMODULE)))
-    CFLAGS += -DVFS_FILE_BUFFER_SIZE=72 -DVFS_DIR_BUFFER_SIZE=44
-endif
-
 include $(RIOTBASE)/Makefile.include