diff --git a/Makefile.am b/Makefile.am
index 3a905f2c01..0e08794c19 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -20,7 +20,7 @@ config_includedir = $(ipseclibdir)/include
 nodist_config_include_HEADERS = config.h
 endif
 
-Android.common.mk :	Android.common.mk.in configure.in
+Android.common.mk :	Android.common.mk.in configure.ac
 		$(AM_V_GEN) \
 		sed \
 		-e "s:\@PACKAGE_VERSION\@:$(PACKAGE_VERSION):" \
@@ -70,4 +70,4 @@ clean-local: cov-reset-common
 		@find $(top_builddir)/{src,scripts} -name "*.gcno" -delete
 		@rm -rf apidoc
 
-.PHONY: cov-reset-common cov-reset cov-report coverage
\ No newline at end of file
+.PHONY: cov-reset-common cov-reset cov-report coverage
diff --git a/configure.in b/configure.ac
similarity index 100%
rename from configure.in
rename to configure.ac