diff --git a/ext/pdo_pgsql/pgsql_statement.c b/ext/pdo_pgsql/pgsql_statement.c
index c35ee33c7fc..1dc0d58e976 100644
--- a/ext/pdo_pgsql/pgsql_statement.c
+++ b/ext/pdo_pgsql/pgsql_statement.c
@@ -362,8 +362,20 @@ static int pgsql_stmt_param_hook(pdo_stmt_t *stmt, struct pdo_bound_param_data *
 				}
 				break;
 		}
+	} else {
+#endif
+	if (param->is_param) {
+        /* We need to manually convert to a pg native boolean value */
+        if (PDO_PARAM_TYPE(param->param_type) == PDO_PARAM_BOOL &&
+            ((param->param_type & PDO_PARAM_INPUT_OUTPUT) != PDO_PARAM_INPUT_OUTPUT)) {
+            SEPARATE_ZVAL(&param->parameter);
+            param->param_type = PDO_PARAM_STR;
+            ZVAL_STRINGL(param->parameter, Z_BVAL_P(param->parameter) ? "t" : "f", 1, 1);
+        }
+    }
+#if HAVE_PQPREPARE
 	}
-#endif	
+#endif
 	return 1;
 }
 
diff --git a/ext/pdo_pgsql/tests/bug62593.phpt b/ext/pdo_pgsql/tests/bug62593.phpt
new file mode 100644
index 00000000000..e3ebf46ed53
--- /dev/null
+++ b/ext/pdo_pgsql/tests/bug62593.phpt
@@ -0,0 +1,51 @@
+--TEST--
+PDO PgSQL Bug #62593 (Emulate prepares behave strangely with PARAM_BOOL)
+--SKIPIF--
+<?php
+if (!extension_loaded('pdo') || !extension_loaded('pdo_pgsql')) die('skip not loaded');
+require dirname(__FILE__) . '/config.inc';
+require dirname(__FILE__) . '/../../../ext/pdo/tests/pdo_test.inc';
+PDOTest::skip();
+?>
+--FILE--
+<?php
+require dirname(__FILE__) . '/../../../ext/pdo/tests/pdo_test.inc';
+$db = PDOTest::test_factory(dirname(__FILE__) . '/common.phpt');
+$db->setAttribute(PDO::ATTR_EMULATE_PREPARES, true);
+$db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_SILENT);
+$errors = array();
+
+$value = true;
+$query = $db->prepare('SELECT :foo IS FALSE as val_is_false');
+$query->bindValue(':foo', $value, PDO::PARAM_BOOL);
+$query->execute();
+$errors[] = $query->errorInfo();
+var_dump($value);
+
+$query->bindValue(':foo', 0, PDO::PARAM_BOOL);
+$query->execute();
+$errors[] = $query->errorInfo();
+
+// Verify bindParam maintains reference and only passes when execute is called
+$value = true;
+$query->bindParam(':foo', $value, PDO::PARAM_BOOL);
+$value = false;
+$query->execute();
+$errors[] = $query->errorInfo();
+var_dump($value);
+
+$expect = 'No errors found';
+
+foreach ($errors as $error)
+{
+  if (strpos('Invalid text representation', $error[2]) !== false)
+  {
+    $expect = 'Invalid boolean found';
+  }
+}
+echo $expect;
+?>
+--EXPECTF--
+bool(true)
+bool(false)
+No errors found