diff --git a/IDE/GCC-ARM/Makefile.common b/IDE/GCC-ARM/Makefile.common
index 742b350df..8920733b4 100644
--- a/IDE/GCC-ARM/Makefile.common
+++ b/IDE/GCC-ARM/Makefile.common
@@ -178,7 +178,7 @@ SRC_C += ../../wolfcrypt/src/selftest.c
 endif
 
 # wolfCrypt non-standard algorithms (disabled by default)
-SRC_C += ../../wolfcrypt/src/arc4.c
+
 SRC_C += ../../wolfcrypt/src/blake2b.c
 SRC_C += ../../wolfcrypt/src/camellia.c
 SRC_C += ../../wolfcrypt/src/dsa.c
diff --git a/IDE/MQX/Makefile b/IDE/MQX/Makefile
index 775120a5f..e1f2554fa 100644
--- a/IDE/MQX/Makefile
+++ b/IDE/MQX/Makefile
@@ -72,7 +72,6 @@ $(WOLF_ROOT)/src/tls13.o\
 $(WOLF_ROOT)/src/tls.o\
 $(WOLF_ROOT)/src/wolfio.o\
 $(WOLF_ROOT)/wolfcrypt/src/aes.o\
-$(WOLF_ROOT)/wolfcrypt/src/arc4.o\
 $(WOLF_ROOT)/wolfcrypt/src/asm.o\
 $(WOLF_ROOT)/wolfcrypt/src/asn.o\
 $(WOLF_ROOT)/wolfcrypt/src/blake2b.o\