diff --git a/Makefile b/Makefile
index af941359..a7f6a687 100644
--- a/Makefile
+++ b/Makefile
@@ -36,9 +36,10 @@ UNPACK_ARCHIVE = \
     $(if $(filter %.tgz,     $(1)),tar xzf '$(1)', \
     $(if $(filter %.tar.gz,  $(1)),tar xzf '$(1)', \
     $(if $(filter %.tar.bz2, $(1)),tar xjf '$(1)', \
+    $(if $(filter %.bz2,     $(1)),tar xjf '$(1)', \
     $(if $(filter %.tar.lzma,$(1)),xz -dc -F lzma '$(1)' | tar xf -, \
     $(if $(filter %.zip,     $(1)),unzip -q '$(1)', \
-    $(error Unknown archive format: $(1)))))))
+    $(error Unknown archive format: $(1))))))))
 
 UNPACK_PKG_ARCHIVE = \
     $(call UNPACK_ARCHIVE,$(PKG_DIR)/$($(1)_FILE))