diff --git a/rc/bashrc b/rc/bashrc
index 9ff44f86..0dab324e 100644
--- a/rc/bashrc
+++ b/rc/bashrc
@@ -92,9 +92,9 @@ if [ -x /usr/bin/dircolors ]; then
     alias dir='dir --color=always'
     alias vdir='vdir --color=always'
 
-    alias grep='grep --color=always'
-    alias fgrep='fgrep --color=always'
-    alias egrep='egrep --color=always'
+    alias grep='grep -i --color=always'
+    alias fgrep='fgrep -i --color=always'
+    alias egrep='egrep -i --color=always'
 fi
 
 # some more ls aliases
@@ -322,11 +322,6 @@ alias supybot-generate-messages.pot-mass="find . -type d -exec sh -c '(cd {} &&
 if [[ $UNAME != Darwin ]]; then
     alias ls='ls --color=always'
 fi
-alias dir='dir --color=always'
-alias vdir='vdir --color=always'
-alias grep='grep --color=always'
-alias fgrep='fgrep --color=always'
-alias egrep='egrep --color=always'
 # some more ls aliases
 if [[ $UNAME != Darwin ]]; then
     alias ll='ls -alFh --color=always' && alias la='ls -A --color=always' && alias l='ls -CF --color=always'
@@ -390,9 +385,6 @@ alias myip="myip4 && myip6"
 # Update groups without logging out. Requires entering password. Source: http://blog.edwards-research.com/2010/10/linux-refresh-group-membership-without-logging-out/
 alias refreshgroups="exec su -l $USER"
 
-# Incasesensitive grepping
-alias grep="grep -i"
-
 # Get public key lenght of (public) SSH key
 alias ssh-pubkey-length="ssh-keygen -lf "
 
diff --git a/rc/zshrc b/rc/zshrc
index 863c05a5..6f1a76b4 100644
--- a/rc/zshrc
+++ b/rc/zshrc
@@ -283,9 +283,9 @@ if [[ $UNAME != Darwin ]]; then
 fi
 alias dir='dir --color=always'
 alias vdir='vdir --color=always'
-alias grep='grep --color=always'
-alias fgrep='fgrep --color=always'
-alias egrep='egrep --color=always'
+alias grep='grep -i --color=always'
+alias fgrep='fgrep -i --color=always'
+alias egrep='egrep -i --color=always'
 # some more ls aliases
 if [[ "$UNAME" != "Darwin" ]]; then
     alias ll='ls -alFh --color=always' && alias la='ls -A --color=always' && alias l='ls -CF --color=always'
@@ -369,9 +369,6 @@ alias myip="myip4 && myip6"
 # Update groups without logging out. Requires entering password. Source: http://blog.edwards-research.com/2010/10/linux-refresh-group-membership-without-logging-out/
 alias refreshgroups="exec su -l $USER"
 
-# Incasesensitive grepping
-alias grep="grep -i"
-
 # Get public key lenght of (public) SSH key
 alias ssh-pubkey-length="ssh-keygen -lf "