diff --git a/lib/perl/test/Makefile.am b/lib/perl/test/Makefile.am
index 795aaed..6a20319 100644
--- a/lib/perl/test/Makefile.am
+++ b/lib/perl/test/Makefile.am
@@ -23,9 +23,9 @@
 check-local: gen-perl/ThriftTest/Types.pm
 
 gen-perl/ThriftTest/Types.pm: $(THRIFT_IF)
-	$(THRIFT) --gen perl $(THRIFT_IF)
+    $(THRIFT) --gen perl $(THRIFT_IF)
 
 clean-local:
-	rm -rf gen-perl
+    rm -rf gen-perl
 
 EXTRA_DIST = memory_buffer.t processor.t