diff --git a/quarkus/runtime/src/main/java/org/keycloak/quarkus/runtime/configuration/ConfigArgsConfigSource.java b/quarkus/runtime/src/main/java/org/keycloak/quarkus/runtime/configuration/ConfigArgsConfigSource.java
index 54db629362..6e00088373 100644
--- a/quarkus/runtime/src/main/java/org/keycloak/quarkus/runtime/configuration/ConfigArgsConfigSource.java
+++ b/quarkus/runtime/src/main/java/org/keycloak/quarkus/runtime/configuration/ConfigArgsConfigSource.java
@@ -172,7 +172,7 @@ public class ConfigArgsConfigSource extends PropertiesConfigSource {
                 continue;
             }
 
-            String[] keyValue = ARG_KEY_VALUE_SPLIT.split(arg);
+            String[] keyValue = ARG_KEY_VALUE_SPLIT.split(arg, 2);
             String key = keyValue[0];
 
             if ("".equals(key.trim())) {
diff --git a/quarkus/runtime/src/test/java/org/keycloak/quarkus/runtime/configuration/test/ConfigurationTest.java b/quarkus/runtime/src/test/java/org/keycloak/quarkus/runtime/configuration/test/ConfigurationTest.java
index 8e3484eaee..7ef768424e 100644
--- a/quarkus/runtime/src/test/java/org/keycloak/quarkus/runtime/configuration/test/ConfigurationTest.java
+++ b/quarkus/runtime/src/test/java/org/keycloak/quarkus/runtime/configuration/test/ConfigurationTest.java
@@ -373,6 +373,13 @@ public class ConfigurationTest {
         assertEquals("enabled", config.getConfigValue("quarkus.datasource.jdbc.transactions").getValue());
     }
 
+    @Test
+    public void testOptionValueWithEqualSign() {
+        System.setProperty(CLI_ARGS, "--db-password=my_secret=");
+        SmallRyeConfig config = createConfig();
+        assertEquals("my_secret=", config.getConfigValue("kc.db.password").getValue());
+    }
+
     private Config.Scope initConfig(String... scope) {
         Config.init(new MicroProfileConfigProvider(createConfig()));
         return Config.scope(scope);