diff --git a/IDE/ROWLEY-CROSSWORKS-ARM/wolfssl.hzp b/IDE/ROWLEY-CROSSWORKS-ARM/wolfssl.hzp
index aec5d2cd0..f55c59f0d 100644
--- a/IDE/ROWLEY-CROSSWORKS-ARM/wolfssl.hzp
+++ b/IDE/ROWLEY-CROSSWORKS-ARM/wolfssl.hzp
@@ -18,7 +18,6 @@
         </folder>
         <folder Name="src">
           <file file_name="../../wolfcrypt/src/aes.c" />
-          <file file_name="../../wolfcrypt/src/arc4.c" />
           <file file_name="../../wolfcrypt/src/asm.c" />
           <file file_name="../../wolfcrypt/src/asn.c" />
           <file file_name="../../wolfcrypt/src/blake2b.c" />
diff --git a/IDE/ROWLEY-CROSSWORKS-ARM/wolfssl_ltc.hzp b/IDE/ROWLEY-CROSSWORKS-ARM/wolfssl_ltc.hzp
index 5bb46727c..dd995ed41 100644
--- a/IDE/ROWLEY-CROSSWORKS-ARM/wolfssl_ltc.hzp
+++ b/IDE/ROWLEY-CROSSWORKS-ARM/wolfssl_ltc.hzp
@@ -18,7 +18,6 @@
         </folder>
         <folder Name="src">
           <file file_name="../../wolfcrypt/src/aes.c" />
-          <file file_name="../../wolfcrypt/src/arc4.c" />
           <file file_name="../../wolfcrypt/src/asm.c">
             <configuration Name="ARM_Debug" build_exclude_from_build="Yes" />
           </file>