diff --git a/files/etc/init.d/nodepool b/files/etc/init.d/nodepool
index e8929e4..716e31e 100644
--- a/files/etc/init.d/nodepool
+++ b/files/etc/init.d/nodepool
@@ -23,7 +23,10 @@ USER=nodepool
 DAEMON=$PREFIX/bin/nodepoold
 
 # Exit if the package is not installed
-[ -x "$DAEMON" ] || (echo "$DAEMON: command not found" && exit 5)
+if ! [ -x "$DAEMON" ]; then
+    echo "$DAEMON: command not found"
+    exit 5
+fi
 
 # Load the VERBOSE setting and other rcS variables
 . /lib/init/vars.sh
diff --git a/files/etc/init.d/nodepool-builder b/files/etc/init.d/nodepool-builder
index 9504dc2..3083959 100644
--- a/files/etc/init.d/nodepool-builder
+++ b/files/etc/init.d/nodepool-builder
@@ -23,7 +23,10 @@ USER=nodepool
 DAEMON=$PREFIX/bin/nodepool-builder
 
 # Exit if the package is not installed
-[ -x "$DAEMON" ] || (echo "$DAEMON: command not found" && exit 5)
+if ! [ -x "$DAEMON" ]; then
+    echo "$DAEMON: command not found"
+    exit 5
+fi
 
 # Load the VERBOSE setting and other rcS variables
 . /lib/init/vars.sh
diff --git a/files/etc/init.d/nodepool-deleter b/files/etc/init.d/nodepool-deleter
index 0cd3286..c7adff6 100644
--- a/files/etc/init.d/nodepool-deleter
+++ b/files/etc/init.d/nodepool-deleter
@@ -23,7 +23,10 @@ USER=nodepool
 DAEMON=$PREFIX/bin/nodepoold
 
 # Exit if the package is not installed
-[ -x "$DAEMON" ] || (echo "$DAEMON: command not found" && exit 5)
+if ! [ -x "$DAEMON" ]; then
+    echo "$DAEMON: command not found"
+    exit 5
+fi
 
 # Load the VERBOSE setting and other rcS variables
 . /lib/init/vars.sh
diff --git a/files/etc/init.d/nodepool-launcher b/files/etc/init.d/nodepool-launcher
index ea95423..2ef6a4a 100644
--- a/files/etc/init.d/nodepool-launcher
+++ b/files/etc/init.d/nodepool-launcher
@@ -23,7 +23,10 @@ USER=nodepool
 DAEMON=$PREFIX/bin/nodepoold
 
 # Exit if the package is not installed
-[ -x "$DAEMON" ] || (echo "$DAEMON: command not found" && exit 5)
+if ! [ -x "$DAEMON" ]; then
+    echo "$DAEMON: command not found"
+    exit 5
+fi
 
 # Load the VERBOSE setting and other rcS variables
 . /lib/init/vars.sh