diff --git a/.travis.yml b/.travis.yml
index 1f3e37896..c1e568985 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,7 +14,8 @@ env:
 
 before_script:
   - if [ "$TRAVIS_OS_NAME" = "linux" ]; then sudo apt-get update       ; fi
-  - if [ "$TRAVIS_OS_NAME" = "linux" ]; then sudo apt-get install cmake gcc g++ nodejs; fi
+  - if [ "$TRAVIS_OS_NAME" = "linux" ]; then sudo apt-get install cmake gcc g++ nodejs ninja-build; fi
+  - if [ "$TRAVIS_OS_NAME" = "osx" ]; then brew install ninja; fi
 
 script:
   - git stash --all
@@ -44,4 +45,4 @@ after_script:
 deploy:
   provider: npm
   email: ${npm_email}
-  api_key: ${npm_token} 
\ No newline at end of file
+  api_key: ${npm_token} 
diff --git a/build.sh b/build.sh
index 27c4e6711..ed7ccbe83 100755
--- a/build.sh
+++ b/build.sh
@@ -144,14 +144,14 @@ then
 	rm -rf ./'Debug-build'
 	mkdir ./'Debug-build'
 	cd ./'Debug-build'
-	cmake -D CMAKE_BUILD_TYPE:STRING=Debug ../
+	cmake -GNinja -D CMAKE_BUILD_TYPE:STRING=Debug ../
 else
 	rm -rf ./'Release-build'
 	mkdir ./'Release-build'
 	cd ./'Release-build'
-	cmake ../
+	cmake -GNinja ../
 fi
-make -j4
+ninja -v
 
 ########
 # Set up environment variables of SVF