diff --git a/lib/erl/Makefile.am b/lib/erl/Makefile.am
index 60c7e5a..9614379 100644
--- a/lib/erl/Makefile.am
+++ b/lib/erl/Makefile.am
@@ -19,47 +19,47 @@
 
 THRIFT = ../../compiler/cpp/thrift
 THRIFT_FILES = $(wildcard test/*.thrift) \
-		  ../../test/ThriftTest.thrift
+          ../../test/ThriftTest.thrift
 
 .generated: $(THRIFT_FILES)
-	for f in $(THRIFT_FILES) ; do \
-	  $(THRIFT) --gen erl -o test $$f ; \
-	done ; \
-	touch .generated
+    for f in $(THRIFT_FILES) ; do \
+      $(THRIFT) --gen erl -o test $$f ; \
+    done ; \
+    touch .generated
 
 all: .generated
-	./rebar get-deps
-	./rebar compile
+    ./rebar get-deps
+    ./rebar compile
 
 check: .generated
-	./rebar skip_deps=true eunit
+    ./rebar skip_deps=true eunit
 
 install: all
-	mkdir -p $(DESTDIR)$(ERLANG_INSTALL_LIB_DIR_thrift) ; \
-	mkdir -p $(DESTDIR)$(ERLANG_INSTALL_LIB_DIR_thrift)/ebin ; \
-	mkdir -p $(DESTDIR)$(ERLANG_INSTALL_LIB_DIR_thrift)/include ; \
-	mkdir -p $(DESTDIR)$(ERLANG_INSTALL_LIB_DIR_thrift)/src ; \
-	for p in ebin/*.app* ebin/*.beam include/*.hrl src/*.erl ; \
-		do $(INSTALL) $$p $(DESTDIR)$(ERLANG_INSTALL_LIB_DIR_thrift)/$$p ; \
-	done
+    mkdir -p $(DESTDIR)$(ERLANG_INSTALL_LIB_DIR_thrift) ; \
+    mkdir -p $(DESTDIR)$(ERLANG_INSTALL_LIB_DIR_thrift)/ebin ; \
+    mkdir -p $(DESTDIR)$(ERLANG_INSTALL_LIB_DIR_thrift)/include ; \
+    mkdir -p $(DESTDIR)$(ERLANG_INSTALL_LIB_DIR_thrift)/src ; \
+    for p in ebin/*.app* ebin/*.beam include/*.hrl src/*.erl ; \
+        do $(INSTALL) $$p $(DESTDIR)$(ERLANG_INSTALL_LIB_DIR_thrift)/$$p ; \
+    done
 
 uninstall:
-	rm -rf $(DESTDIR)$(ERLANG_INSTALL_LIB_DIR_thrift)
+    rm -rf $(DESTDIR)$(ERLANG_INSTALL_LIB_DIR_thrift)
 
 clean:
-	rm -f .generated
-	rm -rf test/gen-erl/
-	./rebar clean
+    rm -f .generated
+    rm -rf test/gen-erl/
+    ./rebar clean
 
 maintainer-clean-local:
-	rm -rf ebin
+    rm -rf ebin
 
 EXTRA_DIST = \
-	include \
-	src \
-	rebar \
-	rebar.config \
-	test \
-	README.md
+    include \
+    src \
+    rebar \
+    rebar.config \
+    test \
+    README.md
 
 MAINTAINERCLEANFILES = Makefile.in