diff --git a/Dockerfile b/Dockerfile
index b3996a0..9f87783 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -15,9 +15,9 @@ RUN apt-get update
 COPY --from=dev /app/dist/*.deb .
 
 RUN if [ -f ./*-signed.deb ]; then \
-        apt-get install -y --no-install-recommends ./*-signed.deb; \
+    apt-get install -y --no-install-recommends ./*-signed.deb; \
     else \
-        apt-get install -y --no-install-recommends ./*.deb; \
+    apt-get install -y --no-install-recommends ./*.deb; \
     fi && \
     rm -rf *.deb && \
     apt-get clean && \
diff --git a/docker-compose.yml b/docker-compose.yml
index 8ac33fe..f6e38fb 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -90,7 +90,7 @@ services:
     image: postgres:latest
     restart: on-failure
     healthcheck:
-      test: ["CMD", "pg_isready", "-U", "postgres"]
+      test: [ "CMD", "pg_isready", "-U", "postgres" ]
       interval: 10s
       timeout: 5s
       retries: 5
@@ -113,7 +113,7 @@ services:
     networks:
       pantos-service-node:
     healthcheck:
-      test: ["CMD", "rabbitmqctl", "status"]
+      test: [ "CMD", "rabbitmqctl", "status" ]
       interval: 10s
       timeout: 5s
       retries: 5
diff --git a/linux/debian/postinst b/linux/debian/postinst
index 13aada4..4a034e2 100644
--- a/linux/debian/postinst
+++ b/linux/debian/postinst
@@ -95,18 +95,20 @@ else
 fi
 
 # Signer key
-if [ ! -e "${signer_key_file}" || -z "$SIGNER_KEY_PASSWORD" ]; then
-  if [ ! command -v ssh-keygen ]; then
-    echo "ssh-keygen is not installed, please install the package with the recommended dependencies to generate the key"
-    exit 1
-  fi
-  echo "Signer key does not exist, generating new one"
-  read -s -p "Please enter your password for your pem file: " passwd
-  ssh-keygen -t ed25519 -f "$signer_key_file" -N "$passwd" >/dev/null 2>&1
-  echo "SIGNER_KEY_PASSWORD='$passwd'" >> ${env_file}
+if [ ! -e ${signer_key_file} ] || [ -z ${SIGNER_KEY_PASSWORD} ]; then
+    # Check if ssh-keygen is installed
+    if command -v ssh-keygen &>/dev/null; then
+      echo "Signer key does not exist; generating a new one"
+      read -s -p "Please enter your password for your PEM file: " passwd
+      ssh-keygen -t ed25519 -f "$signer_key_file" -N "$passwd" >/dev/null 2>&1
+      echo "SIGNER_KEY_PASSWORD='$passwd'" >> "${env_file}"
+    else
+      echo -e "\033[1;32mssh-keygen is not installed, please reinstall the"\
+      "package with the recommended dependencies or make sure that the signer"\
+      "key is provided as an environment variable at run time\033[0m"
+    fi
 fi
 
-
 # Offchain bids
 if [ ! -e "${offchain_bids_default_file}" ]; then
   # if offchain bids default file does not exists, we add it, otherwise do nothing