diff --git a/lib/java/Makefile.am b/lib/java/Makefile.am
index e93f43e..cbec7af 100644
--- a/lib/java/Makefile.am
+++ b/lib/java/Makefile.am
@@ -20,23 +20,23 @@
 export CLASSPATH
 
 all-local:
-    $(ANT) $(ANT_FLAGS)
+	$(ANT) $(ANT_FLAGS)
 
 install-exec-hook:
-    $(ANT) $(ANT_FLAGS) install -Dinstall.path=$(DESTDIR)$(JAVA_PREFIX) \
-        -Dinstall.javadoc.path=$(DESTDIR)$(docdir)/java
+	$(ANT) $(ANT_FLAGS) install -Dinstall.path=$(DESTDIR)$(JAVA_PREFIX) \
+		-Dinstall.javadoc.path=$(DESTDIR)$(docdir)/java
 
 # Make sure this doesn't fail if ant is not configured.
 clean-local:
-    ANT=$(ANT) ; if test -z "$$ANT" ; then ANT=: ; fi ; \
-    $$ANT $(ANT_FLAGS) clean
+	ANT=$(ANT) ; if test -z "$$ANT" ; then ANT=: ; fi ; \
+	$$ANT $(ANT_FLAGS) clean
 
 check-local: all
-    $(ANT) $(ANT_FLAGS) test
+	$(ANT) $(ANT_FLAGS) test
 
 EXTRA_DIST = \
-    build.xml \
-    build.properties \
-    src \
-    test \
-    README.md
\ No newline at end of file
+	build.xml \
+	build.properties \
+	src \
+	test \
+	README.md
\ No newline at end of file