diff --git a/src/Database/IdentifierQuoter.php b/src/Database/IdentifierQuoter.php
index cfd8588968f..1f46032a116 100644
--- a/src/Database/IdentifierQuoter.php
+++ b/src/Database/IdentifierQuoter.php
@@ -190,13 +190,12 @@ protected function _quoteComparison(Comparison $expression) {
 			}
 			$expression->field($quoted);
 		} elseif ($field instanceof ExpressionInterface) {
-			$expression->field($this->quoteExpression($field));
+			$this->quoteExpression($field);
 		}
 
 		$value = $expression->getValue();
 		if ($value instanceof ExpressionInterface) {
 			$this->quoteExpression($value);
-			$expression->value($value);
 		}
 	}
 
diff --git a/tests/TestCase/Database/QueryTest.php b/tests/TestCase/Database/QueryTest.php
index 62372eb8bd6..ef212d81fc3 100644
--- a/tests/TestCase/Database/QueryTest.php
+++ b/tests/TestCase/Database/QueryTest.php
@@ -871,11 +871,9 @@ public function testSelectWhereUsingExpressionInField() {
 				$field = clone $exp;
 				$field->add('SELECT min(id) FROM comments');
 				return $exp
-					->gt($field, 100, 'integer');
-			});
-
-		debug($result->sql());
-		$rsult = $result->execute();
+					->eq($field, 100, 'integer');
+			})
+			->execute();
 		$this->assertCount(0, $result);
 	}