diff --git a/pkg/semtech-loramac/Makefile.dep b/pkg/semtech-loramac/Makefile.dep
index 1bd02cfb96..16eb716643 100644
--- a/pkg/semtech-loramac/Makefile.dep
+++ b/pkg/semtech-loramac/Makefile.dep
@@ -1,4 +1,6 @@
 USEMODULE += random
+USEMODULE += hashes
+USEMODULE += crypto_aes
 
 USEMODULE += semtech_loramac_contrib
 USEMODULE += semtech_loramac_mac
diff --git a/pkg/semtech-loramac/Makefile.loramac_crypto b/pkg/semtech-loramac/Makefile.loramac_crypto
index d164ab6dde..93d26d9e19 100644
--- a/pkg/semtech-loramac/Makefile.loramac_crypto
+++ b/pkg/semtech-loramac/Makefile.loramac_crypto
@@ -1,5 +1,7 @@
 MODULE = semtech_loramac_crypto
 
+SRC = cmac.c
+
 INCLUDES += -I$(PKGDIRBASE)/semtech-loramac/src/boards
 
 include $(RIOTBASE)/Makefile.base
diff --git a/pkg/semtech-loramac/patches/0004-switch-to-riot-aes.patch b/pkg/semtech-loramac/patches/0004-switch-to-riot-aes.patch
new file mode 100644
index 0000000000..bceaaaa821
Binary files /dev/null and b/pkg/semtech-loramac/patches/0004-switch-to-riot-aes.patch differ