diff --git a/firmware/export/config/creativezen.h b/firmware/export/config/creativezen.h
index 1bfc056063..e41a246ccf 100644
--- a/firmware/export/config/creativezen.h
+++ b/firmware/export/config/creativezen.h
@@ -189,7 +189,7 @@
 #define HAVE_BOOTLOADER_USB_MODE
 
 /* Define this if you have adjustable CPU frequency */
-//#define HAVE_ADJUSTABLE_CPU_FREQ
+#define HAVE_ADJUSTABLE_CPU_FREQ
 
 #define BOOTFILE_EXT    "creative"
 #define BOOTFILE        "rockbox." BOOTFILE_EXT
diff --git a/firmware/export/config/creativezenxfi.h b/firmware/export/config/creativezenxfi.h
index 6128d68aa0..ac8bbdb841 100644
--- a/firmware/export/config/creativezenxfi.h
+++ b/firmware/export/config/creativezenxfi.h
@@ -193,7 +193,7 @@
 #define HAVE_BOOTLOADER_USB_MODE
 
 /* Define this if you have adjustable CPU frequency */
-//#define HAVE_ADJUSTABLE_CPU_FREQ
+#define HAVE_ADJUSTABLE_CPU_FREQ
 
 #define BOOTFILE_EXT    "creative"
 #define BOOTFILE        "rockbox." BOOTFILE_EXT