diff --git a/Makefile.in b/Makefile.in
index 0e46356618..2d36381bfd 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -64,6 +64,7 @@ generated: force buildtools
 	+${COMPILE_PART1} config ${COMPILE_PART2A} generated_clean
 	+${COMPILE_PART1} roken ${COMPILE_PART2A} clean
 	+${COMPILE_PART1} crypto/hcrypto ${COMPILE_PART2A} clean
+	+${COMPILE_PART1} opr ${COMPILE_PART2A} clean
 
 install: all install_dirs
 	$(MAKE) build COMPILE_PART2B=install
diff --git a/src/opr/Makefile.in b/src/opr/Makefile.in
index 9d19276f2d..3a8c90b436 100644
--- a/src/opr/Makefile.in
+++ b/src/opr/Makefile.in
@@ -44,5 +44,5 @@ install: libopr.a
 dest: libopr.a
 	$(INSTALL_DATA) libopr.a $(DEST)/lib/libopr.a
 
-buildtools: $(HEADERS)
+buildtools: $(HEADERS) $(TOP_LIBDIR)/libopr.a