diff --git a/scripts/run-tests.sh b/scripts/run-tests.sh
index 9cdc7c1..55aeaec 100755
--- a/scripts/run-tests.sh
+++ b/scripts/run-tests.sh
@@ -163,6 +163,10 @@
 $MAKE CFLAGS="-O2 -Werror" LDFLAGS="-L$BSSL/build/crypto" \
 	CPPFLAGS="-I$BSSL/include" LDLIBS="-lcrypto -lpthread" check
 
+log "Build and test using OpenSSL 1.0"
+$MAKE CFLAGS="-O2 -Werror" LDFLAGS="-L/usr/lib/openssl-1.0" \
+	CPPFLAGS="-I/usr/include/openssl-1.0" check
+
 log "Build and test using -funsigned-char"
 $MAKE CFLAGS="-O2 -Werror -funsigned-char" check