diff --git a/packages/pg-connection-string/index.js b/packages/pg-connection-string/index.js
index 995ff0684..30c4342d8 100644
--- a/packages/pg-connection-string/index.js
+++ b/packages/pg-connection-string/index.js
@@ -61,7 +61,7 @@ function parse(str) {
     config.ssl = true
   }
 
-  if (config.ssl === '0') {
+  if (config.ssl === 'false' || config.ssl === '0') {
     config.ssl = false
   }
 
diff --git a/packages/pg-connection-string/test/parse.js b/packages/pg-connection-string/test/parse.js
index a0cd26385..256a5b2c5 100644
--- a/packages/pg-connection-string/test/parse.js
+++ b/packages/pg-connection-string/test/parse.js
@@ -200,6 +200,12 @@ describe('parse', function () {
     subject.ssl.should.equal(true)
   })
 
+  it('configuration parameter ssl=false', function () {
+    var connectionString = 'pg:///?ssl=false'
+    var subject = parse(connectionString)
+    subject.ssl.should.equal(false)
+  })
+
   it('configuration parameter ssl=1', function () {
     var connectionString = 'pg:///?ssl=1'
     var subject = parse(connectionString)