diff --git a/config/bash/.bashrc b/config/bash/.bashrc
index 19e8e58..06abd2e 100644
--- a/config/bash/.bashrc
+++ b/config/bash/.bashrc
@@ -16,9 +16,12 @@ HISTCONTROL="ignoreboth:erasedups"
 HISTTIMEFORMAT="%F %T  "
 
 # shell options
-shopt -s checkhash checkjobs checkwinsize
-shopt -s dirspell extglob globstar
-shopt -s cmdhist histappend
+if ! shopt -q checkhash 2> /dev/null; then shopt -s checkhash fi
+if ! shopt -q checkwinsize 2> /dev/null; then shopt -s checkwinsize; fi
+if ! shopt -q cmdhist 2> /dev/null; then shopt -s cmdhist; fi
+if ! shopt -q histappend 2> /dev/null; then shopt -s histappend; fi
+if ! shopt -q extglob 2> /dev/null; then shopt -s extglob; fi
+if ! shopt -q globstar 2> /dev/null; then shopt -s globstar; fi
 
 # command variables
 export EDITOR="/usr/bin/vim"