diff --git a/apps/SOURCES b/apps/SOURCES
index 8bf0ed37db..4d2eebaee9 100644
--- a/apps/SOURCES
+++ b/apps/SOURCES
@@ -1,4 +1,6 @@
+#ifdef ROCKBOX_HAS_LOGF
 logfdisp.c
+#endif
 alarm_menu.c
 bookmark.c
 credits.c
diff --git a/firmware/SOURCES b/firmware/SOURCES
index 0ea55b382f..542081b7ca 100644
--- a/firmware/SOURCES
+++ b/firmware/SOURCES
@@ -1,4 +1,6 @@
+#ifdef ROCKBOX_HAS_LOGF
 logf.c
+#endif
 #ifndef SIMULATOR
 backlight.c
 #endif