diff --git a/.travis.yml b/.travis.yml
index 6199bc8..39b52ce 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -21,7 +21,7 @@
 addons:
   apt:
     update: true
-    packages: [ liblua5.3-dev, libsystemd-dev, libpcre2-dev, clang-9, socat ]
+    packages: [ liblua5.3-dev, libsystemd-dev, libpcre2-dev, clang-9, socat, ninja-build ]
   homebrew:
     update: true
     packages: [ socat ]
diff --git a/scripts/build-ssl.sh b/scripts/build-ssl.sh
index 0940f3c..34eee9b 100755
--- a/scripts/build-ssl.sh
+++ b/scripts/build-ssl.sh
@@ -100,8 +100,8 @@
         if [ -d build ]; then rm -rf build; fi
 	mkdir build
 	cd build
-	cmake -DCMAKE_BUILD_TYPE=release -DBUILD_SHARED_LIBS=1 ..
-	make
+	cmake  -GNinja -DCMAKE_BUILD_TYPE=release -DBUILD_SHARED_LIBS=1 ..
+	ninja
 
 	rm -rf ${SSL_LIB} || exit 0
 	rm -rf ${SSL_INC} || exit 0