diff --git a/runtime/Makefile b/runtime/Makefile
index 824805a4..d72eb665 100644
--- a/runtime/Makefile
+++ b/runtime/Makefile
@@ -1,7 +1,4 @@
 RISCV_TOOLCHAIN_PATH ?= /opt/riscv-gnu-toolchain
-# simx64
-RISCV64_TOOLCHAIN_PATH ?= /nethome/ssrivatsan8/riscv
-
 
 CC = $(RISCV_TOOLCHAIN_PATH)/bin/riscv32-unknown-elf-gcc
 AR = $(RISCV_TOOLCHAIN_PATH)/bin/riscv32-unknown-elf-gcc-ar
diff --git a/runtime/src/vx_start.S b/runtime/src/vx_start.S
index 9fa6dcec..16e91a15 100644
--- a/runtime/src/vx_start.S
+++ b/runtime/src/vx_start.S
@@ -23,13 +23,13 @@ _start:
   call    memset
 
   # Register global termination functions
-  # la      a0, __libc_fini_array   
+  la      a0, __libc_fini_array   
 
   # to be called upon exit
   call    atexit                  
 
   # Run global initialization functions
-  # call    __libc_init_array       
+  call    __libc_init_array       
 
   # call main program routine
   call    main