diff --git a/zshrc b/zshrc
index a3aa5f4..fc319b1 100644
--- a/zshrc
+++ b/zshrc
@@ -388,4 +388,7 @@ hash -d b=/usr/bin
 umask 022
 
 # path
-export PATH="$PATH:$HOME/.local/bin/:/opt/gromacs_old/bin/:$HOME/bin/namd:$HOME/bin/namd_gpu"
+export PATH="$HOME/.local/bin/:$HOME/.local/bin/namd:$HOME/.local/bin/namd_gpu:$PATH"
+
+# color gcc
+export GCC_COLOR="auto"
diff --git a/zshrc_server b/zshrc_server
index 6876cb2..8dd120d 100644
--- a/zshrc_server
+++ b/zshrc_server
@@ -313,3 +313,6 @@ umask 022
 
 # path
 export PATH="$PATH:$HOME/.local/bin/"
+
+# color gcc
+export GCC_COLOR="auto"