diff --git a/.travis.yml b/.travis.yml
index aadce046..95672102 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -13,10 +13,10 @@ addons:
         - yosys        
         - libpng-dev
         - libboost-serialization-dev
+        - libstdc++6
 
 install:
-  # Set environments
-  - export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/lib/x86_64-linux-gnu
+  # Set environments  
   - export RISCV_TOOLCHAIN_PATH=/opt/riscv-gnu-toolchain
   - export VERILATOR_ROOT=/opt/verilator
   - export PATH=$VERILATOR_ROOT/bin:$PATH