diff --git a/server-spi-private/src/main/java/org/keycloak/policy/BlacklistPasswordPolicyProvider.java b/server-spi-private/src/main/java/org/keycloak/policy/BlacklistPasswordPolicyProvider.java
index f114c24c6c..4ade2151f5 100644
--- a/server-spi-private/src/main/java/org/keycloak/policy/BlacklistPasswordPolicyProvider.java
+++ b/server-spi-private/src/main/java/org/keycloak/policy/BlacklistPasswordPolicyProvider.java
@@ -45,7 +45,7 @@ public class BlacklistPasswordPolicyProvider implements PasswordPolicyProvider {
 
     PasswordBlacklist blacklist = (FileBasedPasswordBlacklist) policyConfig;
 
-    if (!blacklist.contains(password)) {
+    if (!blacklist.contains(password.toLowerCase())) {
       return null;
     }
 
diff --git a/testsuite/integration-arquillian/tests/base/src/test/java/org/keycloak/testsuite/policy/PasswordPolicyTest.java b/testsuite/integration-arquillian/tests/base/src/test/java/org/keycloak/testsuite/policy/PasswordPolicyTest.java
index 0be8d19fcc..2e7c5f73d9 100755
--- a/testsuite/integration-arquillian/tests/base/src/test/java/org/keycloak/testsuite/policy/PasswordPolicyTest.java
+++ b/testsuite/integration-arquillian/tests/base/src/test/java/org/keycloak/testsuite/policy/PasswordPolicyTest.java
@@ -154,6 +154,7 @@ public class PasswordPolicyTest extends AbstractKeycloakTest {
 
             Assert.assertEquals(BlacklistPasswordPolicyProvider.ERROR_MESSAGE, policyManager.validate("jdoe", "blacklisted1").getMessage());
             Assert.assertEquals(BlacklistPasswordPolicyProvider.ERROR_MESSAGE, policyManager.validate("jdoe", "blacklisted2").getMessage());
+            Assert.assertEquals(BlacklistPasswordPolicyProvider.ERROR_MESSAGE, policyManager.validate("jdoe", "bLaCkLiSteD2").getMessage());
             assertNull(policyManager.validate("jdoe", "notblacklisted"));
         });
     }