diff --git a/package/e2fsprogs/Config.in b/package/e2fsprogs/Config.in
index 16d367106c..1d1e174f45 100644
--- a/package/e2fsprogs/Config.in
+++ b/package/e2fsprogs/Config.in
@@ -49,6 +49,7 @@ config BR2_PACKAGE_E2FSPROGS_E2UNDO
 
 config BR2_PACKAGE_E2FSPROGS_E4DEFRAG
 	bool "e4defrag"
+	depends on !BR2_avr32 # fallocate not implemented
 
 config BR2_PACKAGE_E2FSPROGS_FILEFRAG
 	bool "filefrag"