diff --git a/lib/capistrano/postgresql/helper_methods.rb b/lib/capistrano/postgresql/helper_methods.rb
index d7fa8cf..bbcce8c 100644
--- a/lib/capistrano/postgresql/helper_methods.rb
+++ b/lib/capistrano/postgresql/helper_methods.rb
@@ -5,7 +5,7 @@ module Postgresql
     module HelperMethods
 
       def extension_exists?(extension)
-        psql 'test', fetch(:pg_database), '-tAc', %Q{"SELECT 1 FROM pg_extension WHERE extname='#{extension}';" | grep -q 1}
+        psql 'test', fetch(:pg_database), "-p #{fetch(:pg_port)} -tAc", %Q{"SELECT 1 FROM pg_extension WHERE extname='#{extension}';" | grep -q 1}
       end
 
       def remove_extensions
@@ -14,7 +14,7 @@ def remove_extensions
             # remove in reverse order if extension is present
             Array( fetch(:pg_extensions) ).reverse.each do |ext|
               next if [nil, false, ""].include?(ext)
-              psql 'execute', fetch(:pg_database), '-c', %Q{"DROP EXTENSION IF EXISTS #{ext};"} if extension_exists?(ext)
+              psql 'execute', fetch(:pg_database), "-p #{fetch(:pg_port)} -c", %Q{"DROP EXTENSION IF EXISTS #{ext};"} if extension_exists?(ext)
             end
           end
         end
diff --git a/lib/capistrano/postgresql/psql_helpers.rb b/lib/capistrano/postgresql/psql_helpers.rb
index 027b2a3..8c8b8cf 100644
--- a/lib/capistrano/postgresql/psql_helpers.rb
+++ b/lib/capistrano/postgresql/psql_helpers.rb
@@ -20,17 +20,17 @@ def psql(type, database, *args)
       end
 
       def database_user_exists?
-        psql 'test', fetch(:pg_system_db),'-tAc', %Q{"SELECT 1 FROM pg_roles WHERE rolname='#{fetch(:pg_username)}';" | grep -q 1}
+        psql 'test', fetch(:pg_system_db),"-p #{fetch(:pg_port)} -tAc", %Q{"SELECT 1 FROM pg_roles WHERE rolname='#{fetch(:pg_username)}';" | grep -q 1}
       end
 
       def database_user_password_different?
-        current_password_md5 = psql 'capture', fetch(:pg_system_db),'-tAc', %Q{"select passwd from pg_shadow WHERE usename='#{fetch(:pg_username)}';"}
+        current_password_md5 = psql 'capture', fetch(:pg_system_db),"-p #{fetch(:pg_port)} -tAc", %Q{"select passwd from pg_shadow WHERE usename='#{fetch(:pg_username)}';"}
         new_password_md5 = "md5#{Digest::MD5.hexdigest("#{fetch(:pg_password)}#{fetch(:pg_username)}")}"
         current_password_md5 == new_password_md5 ? false : true
       end
 
       def database_exists?
-        psql 'test', fetch(:pg_system_db), '-tAc', %Q{"SELECT 1 FROM pg_database WHERE datname='#{fetch(:pg_database)}';" | grep -q 1}
+        psql 'test', fetch(:pg_system_db), "-p #{fetch(:pg_port)} -tAc", %Q{"SELECT 1 FROM pg_database WHERE datname='#{fetch(:pg_database)}';" | grep -q 1}
       end
 
     end
diff --git a/lib/capistrano/tasks/postgresql.rake b/lib/capistrano/tasks/postgresql.rake
index 089d37e..8bb612f 100644
--- a/lib/capistrano/tasks/postgresql.rake
+++ b/lib/capistrano/tasks/postgresql.rake
@@ -51,8 +51,8 @@ namespace :postgresql do
       execute :rm, archetype_database_yml_file if test "[ -e #{archetype_database_yml_file} ]"
     end
     on roles :db do
-      psql'execute', fetch(:pg_system_db), '-c', %Q{"DROP database \\"#{fetch(:pg_database)}\\";"} if database_exists?
-      psql 'execute', fetch(:pg_system_db),'-c', %Q{"DROP user \\"#{fetch(:pg_username)}\\";"}if database_user_exists?
+      psql'execute', fetch(:pg_system_db), "-p #{fetch(:pg_port)} -c", %Q{"DROP database \\"#{fetch(:pg_database)}\\";"} if database_exists?
+      psql 'execute', fetch(:pg_system_db),"-p #{fetch(:pg_port)} -c", %Q{"DROP user \\"#{fetch(:pg_username)}\\";"}if database_user_exists?
       remove_extensions
     end
     puts 'Removed database.yml from all hosts, Database, Database User, and Removed Extensions'
@@ -76,7 +76,7 @@ namespace :postgresql do
       if Array( fetch(:pg_extensions) ).any?
         Array( fetch(:pg_extensions) ).each do |ext|
           next if [nil, false, ''].include?(ext)
-          psql 'execute', fetch(:pg_database), '-c', %Q{"CREATE EXTENSION IF NOT EXISTS #{ext};"}unless extension_exists?(ext)
+          psql 'execute', fetch(:pg_database), "-p #{fetch(:pg_port)} -c", %Q{"CREATE EXTENSION IF NOT EXISTS #{ext};"}unless extension_exists?(ext)
         end
       end
     end
@@ -87,11 +87,11 @@ namespace :postgresql do
     on roles :db do
       unless database_user_exists?
         # If you use CREATE USER instead of CREATE ROLE the LOGIN right is granted automatically; otherwise you must specify it in the WITH clause of the CREATE statement.
-        psql 'execute', fetch(:pg_system_db), '-c', %Q{"CREATE USER \\"#{fetch(:pg_username)}\\" PASSWORD}, redact("'#{fetch(:pg_password)}'"), %Q{;"}
+        psql 'execute', fetch(:pg_system_db), "-p #{fetch(:pg_port)} -c", %Q{"CREATE USER \\"#{fetch(:pg_username)}\\" PASSWORD}, redact("'#{fetch(:pg_password)}'"), %Q{;"}
       end
       if database_user_password_different?
         # Ensure updating the password in your deploy/ENV.rb files updates the user, server side
-        psql 'execute', fetch(:pg_system_db), '-c', %Q{"ALTER USER \\"#{fetch(:pg_username)}\\" WITH PASSWORD}, redact("'#{fetch(:pg_password)}'"), %Q{;"}
+        psql 'execute', fetch(:pg_system_db), "-p #{fetch(:pg_port)} -c", %Q{"ALTER USER \\"#{fetch(:pg_username)}\\" WITH PASSWORD}, redact("'#{fetch(:pg_password)}'"), %Q{;"}
       end
     end
   end
@@ -100,7 +100,7 @@ namespace :postgresql do
   task :create_database do
     on roles :db do
       unless database_exists?
-        psql 'execute', fetch(:pg_system_db), '-c', %Q{"CREATE DATABASE \\"#{fetch(:pg_database)}\\" OWNER \\"#{fetch(:pg_username)}\\";"}
+        psql 'execute', fetch(:pg_system_db), "-p #{fetch(:pg_port)} -c", %Q{"CREATE DATABASE \\"#{fetch(:pg_database)}\\" OWNER \\"#{fetch(:pg_username)}\\";"}
       end
     end
   end