diff --git a/diktat-gradle-plugin/src/main/kotlin/org/cqfn/diktat/plugin/gradle/DiktatJavaExecTaskBase.kt b/diktat-gradle-plugin/src/main/kotlin/org/cqfn/diktat/plugin/gradle/DiktatJavaExecTaskBase.kt
index b705d03d0b..ac809fff15 100644
--- a/diktat-gradle-plugin/src/main/kotlin/org/cqfn/diktat/plugin/gradle/DiktatJavaExecTaskBase.kt
+++ b/diktat-gradle-plugin/src/main/kotlin/org/cqfn/diktat/plugin/gradle/DiktatJavaExecTaskBase.kt
@@ -144,7 +144,7 @@ open class DiktatJavaExecTaskBase @Inject constructor(
             }
         } else {
             flag.append("--reporter=plain")
-            log.warn("Unknown reporter was specified. Falling back to plain reporter.")
+            log.debug("Unknown reporter was specified. Falling back to plain reporter.")
         }
     }