diff --git a/aws-lightsail/lib/common.sh b/aws-lightsail/lib/common.sh
index 01d4e640..8f5bc92b 100644
--- a/aws-lightsail/lib/common.sh
+++ b/aws-lightsail/lib/common.sh
@@ -136,6 +136,8 @@ verify_server_connectivity() {
     local ip="$1" max_attempts=${2:-30} attempt=1
     log_warn "Waiting for SSH connectivity to $ip..."
     while [[ $attempt -le $max_attempts ]]; do
+        # SSH_OPTS is defined in shared/common.sh
+        # shellcheck disable=SC2154
         if ssh $SSH_OPTS -o ConnectTimeout=5 "ubuntu@$ip" "echo ok" >/dev/null 2>&1; then
             log_info "SSH connection established"; return 0
         fi
diff --git a/digitalocean/lib/common.sh b/digitalocean/lib/common.sh
index d9dd0cb3..bc7eea44 100755
--- a/digitalocean/lib/common.sh
+++ b/digitalocean/lib/common.sh
@@ -241,6 +241,8 @@ for net in data['droplet']['networks']['v4']:
 verify_server_connectivity() {
     local ip="$1"
     local max_attempts=${2:-30}
+    # SSH_OPTS is defined in shared/common.sh
+    # shellcheck disable=SC2154
     generic_ssh_wait "$ip" "$SSH_OPTS -o ConnectTimeout=5" "echo ok" "SSH connectivity" "$max_attempts" 5
 }
 
diff --git a/gcp/lib/common.sh b/gcp/lib/common.sh
index 3d5647a0..6f837fdd 100644
--- a/gcp/lib/common.sh
+++ b/gcp/lib/common.sh
@@ -122,6 +122,8 @@ verify_server_connectivity() {
     local username=$(whoami)
     log_warn "Waiting for SSH connectivity to $ip..."
     while [[ $attempt -le $max_attempts ]]; do
+        # SSH_OPTS is defined in shared/common.sh
+        # shellcheck disable=SC2154
         if ssh $SSH_OPTS -o ConnectTimeout=5 "${username}@$ip" "echo ok" >/dev/null 2>&1; then
             log_info "SSH connection established"; return 0
         fi
diff --git a/hetzner/lib/common.sh b/hetzner/lib/common.sh
index 0e8946bc..1222c450 100755
--- a/hetzner/lib/common.sh
+++ b/hetzner/lib/common.sh
@@ -209,6 +209,8 @@ print(json.dumps(body))
 verify_server_connectivity() {
     local ip="$1"
     local max_attempts=${2:-30}
+    # SSH_OPTS is defined in shared/common.sh
+    # shellcheck disable=SC2154
     generic_ssh_wait "$ip" "$SSH_OPTS -o ConnectTimeout=5" "echo ok" "SSH connectivity" "$max_attempts" 5
 }
 
diff --git a/lambda/lib/common.sh b/lambda/lib/common.sh
index 1e6dace0..416be8c0 100644
--- a/lambda/lib/common.sh
+++ b/lambda/lib/common.sh
@@ -172,6 +172,8 @@ verify_server_connectivity() {
     local ip="$1" max_attempts=${2:-30} attempt=1
     log_warn "Waiting for SSH connectivity to $ip..."
     while [[ $attempt -le $max_attempts ]]; do
+        # SSH_OPTS is defined in shared/common.sh
+        # shellcheck disable=SC2154
         if ssh $SSH_OPTS -o ConnectTimeout=5 "ubuntu@$ip" "echo ok" >/dev/null 2>&1; then
             log_info "SSH connection established"; return 0
         fi
diff --git a/linode/lib/common.sh b/linode/lib/common.sh
index 63632425..8ea77ab6 100644
--- a/linode/lib/common.sh
+++ b/linode/lib/common.sh
@@ -209,6 +209,8 @@ print('; '.join(e.get('reason','Unknown') for e in errs) if errs else 'Unknown e
 
 verify_server_connectivity() {
     local ip="$1" max_attempts=${2:-30}
+    # SSH_OPTS is defined in shared/common.sh
+    # shellcheck disable=SC2154
     generic_ssh_wait "$ip" "$SSH_OPTS -o ConnectTimeout=5" "echo ok" "SSH connectivity" "$max_attempts" 5
 }
 
diff --git a/vultr/lib/common.sh b/vultr/lib/common.sh
index e42fda52..03af6307 100755
--- a/vultr/lib/common.sh
+++ b/vultr/lib/common.sh
@@ -218,6 +218,8 @@ print(json.dumps(body))
 verify_server_connectivity() {
     local ip="$1"
     local max_attempts=${2:-30}
+    # SSH_OPTS is defined in shared/common.sh
+    # shellcheck disable=SC2154
     generic_ssh_wait "$ip" "$SSH_OPTS -o ConnectTimeout=5" "echo ok" "SSH connectivity" "$max_attempts" 5
 }