diff --git a/bin/convertToIcns b/bin/convertToIcns
index 4681722..cf65190 100755
--- a/bin/convertToIcns
+++ b/bin/convertToIcns
@@ -13,17 +13,8 @@ set -e
 CONVERT_TO_PNG="${BASH_SOURCE%/*}/convertToPng"
 
 # Exec Paths
-ICONUTIL=$(which iconutil)
-IMAGEMAGICK_CONVERT=$(which convert)
-
-if [ ! -x "${ICONUTIL}" ]; then
-	echo "Cannot find required iconutil executable" >&2
-	exit 1;
-fi
-if [ ! -x "${IMAGEMAGICK_CONVERT}" ]; then
-	echo "Cannot find required ImageMagick Convert executable" >&2
-	exit 1;
-fi
+type convert >/dev/null 2>&1 || { echo >&2 "Cannot find required ImageMagick Convert executable"; exit 1; }
+type iconutil >/dev/null 2>&1 || { echo >&2 "Cannot find required iconutil executable"; exit 1; }
 
 # Parameters
 SOURCE=$1
diff --git a/bin/convertToIco b/bin/convertToIco
index 7053755..a0265c8 100755
--- a/bin/convertToIco
+++ b/bin/convertToIco
@@ -8,12 +8,7 @@
 
 set -e
 
-IMAGEMAGICK_CONVERT=$(which convert)
-
-if [ ! -x "${IMAGEMAGICK_CONVERT}" ]; then
-	echo "Cannot find required ImageMagick Convert executable" >&2
-	exit 1;
-fi
+type convert >/dev/null 2>&1 || { echo >&2 "Cannot find required ImageMagick Convert executable"; exit 1; }
 
 SOURCE=$1
 DEST=$2
diff --git a/bin/convertToPng b/bin/convertToPng
index 4ce7668..9f5abb6 100755
--- a/bin/convertToPng
+++ b/bin/convertToPng
@@ -8,18 +8,8 @@
 
 set -e
 
-# Exec Paths
-IMAGEMAGICK_CONVERT=$(which convert)
-IMAGEMAGICK_IDENTIFY=$(which identify)
-
-if [ ! -x "${IMAGEMAGICK_CONVERT}" ]; then
-	echo "Cannot find required ImageMagick Convert executable" >&2
-	exit 1;
-fi
-if [ ! -x "${IMAGEMAGICK_IDENTIFY}" ]; then
-	echo "Cannot find required ImageMagick Identify executable" >&2
-	exit 1;
-fi
+type convert >/dev/null 2>&1 || { echo >&2 "Cannot find required ImageMagick Convert executable"; exit 1; }
+type identify >/dev/null 2>&1 || { echo >&2 "Cannot find required ImageMagick Identify executable"; exit 1; }
 
 # Parameters
 SOURCE=$1