diff --git a/cpu/stm32f4/Makefile.features b/cpu/stm32f4/Makefile.features
index f6818fb224c7bc126a75501f9da3e7531adff7e7..8f57130ae656f92fdbc70071e3f91b2967e02433 100644
--- a/cpu/stm32f4/Makefile.features
+++ b/cpu/stm32f4/Makefile.features
@@ -1,4 +1,5 @@
 FEATURES_PROVIDED += periph_hwrng
+FEATURES_PROVIDED += puf_sram
 
 # the granularity of provided feature definition for STMs is currently by CPU
 # sub-family (e.g., stm32f[1234]).  Unfortunately, only some of e.g., the