diff --git a/.travis.yml b/.travis.yml
index c9dc29b..d2c9e0a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,28 +2,39 @@ language: cpp
 dist: xenial
 compiler: clang
 
+branches:
+  only:
+    - master
+
 stages:
   - name: Fuzzing
-#    if: type = cron
 
 jobs:
   include:
     - stage: Fuzzing
-      name: Continuous Fuzzing via Fuzzit (fuzzing daily)
+      name: Continuous Fuzzing via Fuzzit
       language: bash
       compiler: clang
       script:
-        - export CC=`which clang`
-        - export CXX=`which clang++`
-        - mkdir -p build
-        - cd build
-        - cmake .. -DCMAKE_BUILD_TYPE=AddressSanitizer
-        - make
-        - wget -O fuzzit https://github.com/fuzzitdev/fuzzit/releases/download/v1.2.5/fuzzit_1.2.5_Linux_x86_64
-        - chmod a+x fuzzit
-        - ./fuzzit auth ${FUZZIT_AUTH_KEY}
-        - export TARGET_ID=Ba04ssna9qEd7bwN27Xz
-        - ./fuzzit create job --branch ${TRAVIS_BRANCH} --revision ${TRAVIS_COMMIT} ${TARGET_ID} ./fuzz/fuzz_test_string
+        - |
+          if [ "$TRAVIS_PULL_REQUEST" = "false" ]; then
+            export FUZZING_TYPE="fuzzing"
+            export BRANCH=${TRAVIS_BRANCH}
+          else
+            export FUZZING_TYPE="sanity"
+            export BRANCH=${TRAVIS_PULL_REQUEST}
+          fi
+          export CC=`which clang`
+          export CXX=`which clang++`
+          mkdir -p build
+          cd build
+          cmake .. -DCMAKE_BUILD_TYPE=AddressSanitizer
+          make
+          wget -O fuzzit https://github.com/fuzzitdev/fuzzit/releases/download/v1.2.5/fuzzit_1.2.5_Linux_x86_64
+          chmod a+x fuzzit
+          ./fuzzit auth ${FUZZIT_AUTH_KEY}
+          export TARGET_ID=Ba04ssna9qEd7bwN27Xz
+          ./fuzzit create job --type ${FUZZING_TYPE} --branch ${BRANCH} --revision ${TRAVIS_COMMIT} ${TARGET_ID} ./fuzz/fuzz_test_string
 
 env:
   global:
diff --git a/README.md b/README.md
index 801df4e..76cc319 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,4 @@
+[![Build Status](https://travis-ci.org/fuzzitdev/example.svg?branch=master)](https://travis-ci.org/fuzzitdev/example)
 ![fuzzit](https://app.fuzzit.dev/badge?org_id=hP8u8bNAda91Cnj0mKPX&branch=master)
 
 # Continuous Fuzzing Example
diff --git a/src/test_string.cpp b/src/test_string.cpp
index e71cfb2..4fe74bf 100644
--- a/src/test_string.cpp
+++ b/src/test_string.cpp
@@ -12,7 +12,7 @@ int test_string(const char *src, size_t len)
     } else {
         if (strncmp(src, FLAG, strlen(FLAG)) == 0) {
             // TRIGGER HEAP OVERFLOW READ
-            if (src[len] == 0) {
+            if (src[len-1] == 0) {
                 return -2;
             }
             return -1;