diff --git a/completions/docker-compose.completion.sh b/completions/docker-compose.completion.sh
index 8efbeea..be58a51 100644
--- a/completions/docker-compose.completion.sh
+++ b/completions/docker-compose.completion.sh
@@ -39,7 +39,7 @@ __docker_compose_to_extglob() {
 # suppress trailing whitespace
 __docker_compose_nospace() {
 	# compopt is not available in ancient bash versions
-	type compopt &>/dev/null && compopt -o nospace
+	_omb_util_command_exists compopt && compopt -o nospace
 }
 
 # Extracts all service names from the compose file.
diff --git a/completions/docker.completion.sh b/completions/docker.completion.sh
index 95a464b..c14c600 100644
--- a/completions/docker.completion.sh
+++ b/completions/docker.completion.sh
@@ -406,7 +406,7 @@ __docker_subcommands() {
 # suppress trailing whitespace
 __docker_nospace() {
 	# compopt is not available in ancient bash versions
-	type compopt &>/dev/null && compopt -o nospace
+	_omb_util_command_exists compopt && compopt -o nospace
 }
 
 __docker_complete_resolved_hostname() {
diff --git a/lib/base.sh b/lib/base.sh
index b7efca6..1a14cc4 100644
--- a/lib/base.sh
+++ b/lib/base.sh
@@ -124,7 +124,7 @@ zipf () { zip -r "$1".zip "$1" ; }           # zipf:         To create a ZIP arc
 #   mkiso:  creates iso from current dir in the parent dir (unless defined)
 #   ---------------------------------------------------------
     mkiso () {
-      if type "mkisofs" > /dev/null; then
+      if _omb_util_command_exists mkisofs; then
         if [ -z ${1+x} ]; then
           local isoname=${PWD##*/}
         else
diff --git a/lib/utils.sh b/lib/utils.sh
index 9e8750c..b6e8c77 100644
--- a/lib/utils.sh
+++ b/lib/utils.sh
@@ -403,7 +403,7 @@ _omb_util_alias() {
 
 function _omb_util_mktemp {
   local template=tmp.oh-my-bash.XXXXXXXXXX
-  if type -t mktemp &>/dev/null; then
+  if _omb_util_command_exists mktemp; then
     mktemp -t "$template"
   else
     m4 -D template="${TMPDIR:-/tmp}/$template" <<< 'mkstemp(template)'
diff --git a/plugins/nvm/nvm.plugin.sh b/plugins/nvm/nvm.plugin.sh
index 9cb7c49..068ce1d 100644
--- a/plugins/nvm/nvm.plugin.sh
+++ b/plugins/nvm/nvm.plugin.sh
@@ -5,7 +5,7 @@
 
 
 # Try to load nvm only if command not already available
-if ! type "nvm" &> /dev/null; then
+if ! _omb_util_command_exists nvm; then
   [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"  # This loads nvm
   # This is done as part of completions!!!
   # [ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"  # This loads nvm bash_completion