diff --git a/quarkus/runtime/src/main/resources/application.properties b/quarkus/runtime/src/main/resources/application.properties
index 9345aa38f5e..26de6d17fcc 100644
--- a/quarkus/runtime/src/main/resources/application.properties
+++ b/quarkus/runtime/src/main/resources/application.properties
@@ -77,9 +77,10 @@ quarkus.http.limits.max-header-size=65535
 %dev.kc.http-enabled=true
 %dev.kc.hostname-strict=false
 %dev.kc.cache=local
-%dev.kc.spi-theme--cache--themes=false
-%dev.kc.spi-theme--cache--templates=false
-%dev.kc.spi-theme--static--max-age=-1
+# Theme no-cache defaults for dev - these are not standard spi properties, there is no provider
+%dev.kc.spi-theme--cache-themes=false
+%dev.kc.spi-theme--cache-templates=false
+%dev.kc.spi-theme--static-max-age=-1
 
 # The default configuration when running import, export, bootstrap-admin
 %nonserver.kc.http-enabled=true
diff --git a/quarkus/runtime/src/test/java/org/keycloak/quarkus/runtime/configuration/ConfigurationTest.java b/quarkus/runtime/src/test/java/org/keycloak/quarkus/runtime/configuration/ConfigurationTest.java
index 4896ba95fc4..5da11af8dd6 100644
--- a/quarkus/runtime/src/test/java/org/keycloak/quarkus/runtime/configuration/ConfigurationTest.java
+++ b/quarkus/runtime/src/test/java/org/keycloak/quarkus/runtime/configuration/ConfigurationTest.java
@@ -51,6 +51,7 @@ import org.mariadb.jdbc.MariaDbDataSource;
 import org.postgresql.xa.PGXADataSource;
 
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertTrue;
@@ -427,6 +428,14 @@ public class ConfigurationTest extends AbstractConfigurationTest {
         Assert.assertEquals("foo-val3", config.getConfigValue("quarkus.datasource.bar").getValue());
     }
 
+    @Test
+    public void testDevThemeProperties() {
+        assertNull(initConfig("theme").getBoolean("cacheThemes"));
+
+        System.setProperty(org.keycloak.common.util.Environment.PROFILE, "dev");
+        assertFalse(initConfig("theme").getBoolean("cacheThemes"));
+    }
+
     @Test
     public void testClusterConfig() {
         // Cluster enabled by default, but disabled for the "dev" profile