diff --git a/.travis.yml b/.travis.yml
index da3381bdc..3d824ab3a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,10 +2,12 @@ language: c
 compiler:
   - gcc
   - clang
-script: s/travis-build
 before_install:
   - sudo apt-get update -qq
-  - sudo apt-get install -qq zlib1g-dev libtolua-dev liblua5.1-dev libncurses5-dev libsqlite3-dev libxml2-dev valgrind
+install:
+  - sudo apt-get install -qq zlib1g-dev libtolua-dev liblua5.1-dev libncurses5-dev libsqlite3-dev libxml2-dev valgrind clang
+script:
+  - s/travis-build
 os:
   - linux
   - osx
diff --git a/s/travis-build b/s/travis-build
index b34340266..e6d132409 100755
--- a/s/travis-build
+++ b/s/travis-build
@@ -4,9 +4,8 @@ set -e
 ROOT=`pwd`
 SUPP=../share/ubuntu-12_04.supp
 MACHINE=`uname -m`
+[ -z "$CC" ] && [ ! -z `which clang` ] && CC="clang"
 [ -z "$CC" ] && [ ! -z `which gcc` ] && CC="gcc"
-[ -z "$CC" ] && [ ! -z `which tcc` ] && CC="tcc"
-[ -z "$CC" ] && [ ! -z `which cc` ] && CC="cc"
 BUILD="$ROOT/build-$MACHINE-$CC-Debug"
 
 inifile() {
@@ -20,7 +19,7 @@ fi
 build() {
 cd $BUILD
 cmake -DCMAKE_MODULE_PATH=$ROOT/cmake/Modules -DCMAKE_BUILD_TYPE=Debug ..
-make
+scan-build make
 }
 
 test_valgrind_report () {
diff --git a/src/jsreport.c b/src/jsreport.c
index bfbb9e33b..6d9f710c2 100644
--- a/src/jsreport.c
+++ b/src/jsreport.c
@@ -74,7 +74,7 @@ static int report_json(const char *filename, report_context * ctx, const char *c
             }
             return 0;
         }
-        return errno;
+        return -1;
     }
     return 0;
 }