diff --git a/dev/debug_osync.sh b/dev/debug_osync.sh
index b6f8240..667391f 100755
--- a/dev/debug_osync.sh
+++ b/dev/debug_osync.sh
@@ -1040,14 +1040,14 @@ function CheckCurrentConfig {
 
 	# Check all variables that should contain "yes" or "no"
 	declare -a yes_no_vars=(CREATE_DIRS SUDO_EXEC SSH_COMPRESSION REMOTE_HOST_PING PRESERVE_ACL PRESERVE_XATTR COPY_SYMLINKS KEEP_DIRLINKS PRESERVE_HARDLINKS CHECKSUM RSYNC_COMPRESS CONFLICT_BACKUP CONFLICT_BACKUP_MULTIPLE SOFT_DELETE RESUME_SYNC FORCE_STRANGER_LOCK_RESUME PARTIAL DELTA_COPIES STOP_ON_CMD_ERROR)
-	for i in ${yes_no_vars[@]}; do
+	for i in "${yes_no_vars[@]}"; do
 		test="if [ \"\$$i\" != \"yes\" ] && [ \"\$$i\" != \"no\" ]; then Logger \"Bogus $i value defined in config file.\" \"CRITICAL\"; exit 1; fi"
 		eval "$test"
 	done
 
 	# Check all variables that should contain a numerical value >= 0
 	declare -a num_vars=(MINIMUM_SPACE BANDWIDTH SOFT_MAX_EXEC_TIME HARD_MAX_EXEC_TIME MIN_WAIT MAX_WAIT CONFLICT_BACKUP_DAYS SOFT_DELETE_DAYS RESUME_TRY)
-	for i in ${num_vars[@]}; do
+	for i in "${num_vars[@]}"; do
 		test="if [ $(IsNumeric \"\$$i\") -eq 0 ]; then Logger \"Bogus $i value defined in config file.\" \"CRITICAL\"; exit 1; fi"
 		eval "$test"
 	done
diff --git a/dev/n_osync.sh b/dev/n_osync.sh
index ed7aa72..0cc031b 100755
--- a/dev/n_osync.sh
+++ b/dev/n_osync.sh
@@ -116,14 +116,14 @@ function CheckCurrentConfig {
 
         # Check all variables that should contain "yes" or "no"
         declare -a yes_no_vars=(CREATE_DIRS SUDO_EXEC SSH_COMPRESSION REMOTE_HOST_PING PRESERVE_ACL PRESERVE_XATTR COPY_SYMLINKS KEEP_DIRLINKS PRESERVE_HARDLINKS CHECKSUM RSYNC_COMPRESS CONFLICT_BACKUP CONFLICT_BACKUP_MULTIPLE SOFT_DELETE RESUME_SYNC FORCE_STRANGER_LOCK_RESUME PARTIAL DELTA_COPIES STOP_ON_CMD_ERROR)
-        for i in ${yes_no_vars[@]}; do
+        for i in "${yes_no_vars[@]}"; do
                 test="if [ \"\$$i\" != \"yes\" ] && [ \"\$$i\" != \"no\" ]; then Logger \"Bogus $i value defined in config file.\" \"CRITICAL\"; exit 1; fi"
                 eval "$test"
         done
 
         # Check all variables that should contain a numerical value >= 0
         declare -a num_vars=(MINIMUM_SPACE BANDWIDTH SOFT_MAX_EXEC_TIME HARD_MAX_EXEC_TIME MIN_WAIT MAX_WAIT CONFLICT_BACKUP_DAYS SOFT_DELETE_DAYS RESUME_TRY)
-        for i in ${num_vars[@]}; do
+        for i in "${num_vars[@]}"; do
 		test="if [ $(IsNumeric \"\$$i\") -eq 0 ]; then Logger \"Bogus $i value defined in config file.\" \"CRITICAL\"; exit 1; fi"
                 eval "$test"
         done
diff --git a/osync.sh b/osync.sh
index 79eb625..8719ab2 100755
--- a/osync.sh
+++ b/osync.sh
@@ -937,14 +937,14 @@ function CheckCurrentConfig {
 
 	# Check all variables that should contain "yes" or "no"
 	declare -a yes_no_vars=(CREATE_DIRS SUDO_EXEC SSH_COMPRESSION REMOTE_HOST_PING PRESERVE_ACL PRESERVE_XATTR COPY_SYMLINKS KEEP_DIRLINKS PRESERVE_HARDLINKS CHECKSUM RSYNC_COMPRESS CONFLICT_BACKUP CONFLICT_BACKUP_MULTIPLE SOFT_DELETE RESUME_SYNC FORCE_STRANGER_LOCK_RESUME PARTIAL DELTA_COPIES STOP_ON_CMD_ERROR)
-	for i in ${yes_no_vars[@]}; do
+	for i in "${yes_no_vars[@]}"; do
 		test="if [ \"\$$i\" != \"yes\" ] && [ \"\$$i\" != \"no\" ]; then Logger \"Bogus $i value defined in config file.\" \"CRITICAL\"; exit 1; fi"
 		eval "$test"
 	done
 
 	# Check all variables that should contain a numerical value >= 0
 	declare -a num_vars=(MINIMUM_SPACE BANDWIDTH SOFT_MAX_EXEC_TIME HARD_MAX_EXEC_TIME MIN_WAIT MAX_WAIT CONFLICT_BACKUP_DAYS SOFT_DELETE_DAYS RESUME_TRY)
-	for i in ${num_vars[@]}; do
+	for i in "${num_vars[@]}"; do
 		test="if [ $(IsNumeric \"\$$i\") -eq 0 ]; then Logger \"Bogus $i value defined in config file.\" \"CRITICAL\"; exit 1; fi"
 		eval "$test"
 	done