diff --git a/common/src/main/java/io/netty/util/internal/PlatformDependent.java b/common/src/main/java/io/netty/util/internal/PlatformDependent.java
index bed261ca43..ad68145054 100644
--- a/common/src/main/java/io/netty/util/internal/PlatformDependent.java
+++ b/common/src/main/java/io/netty/util/internal/PlatformDependent.java
@@ -151,8 +151,8 @@ public final class PlatformDependent {
     }
 
     /**
-     * Returns {@code true} if the platform has reliable low-level direct buffer access API and a user specified
-     * {@code -Dio.netty.preferDirect} option.
+     * Returns {@code true} if the platform has reliable low-level direct buffer access API and a user has not specified
+     * {@code -Dio.netty.noPreferDirect} option.
      */
     public static boolean directBufferPreferred() {
         return DIRECT_BUFFER_PREFERRED;