diff --git a/.travis.yml b/.travis.yml
index 918035f..48b4876 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,11 +10,7 @@ install:
 script:
   - NVM_DIR=$TRAVIS_BUILD_DIR make TEST_SUITE=$TEST_SUITE URCHIN=/tmp/urchin/package/urchin test-$SHELL
 env:
-  - SHELL=sh TEST_SUITE=install_script
-  - SHELL=dash TEST_SUITE=install_script
   - SHELL=bash TEST_SUITE=install_script
-  - SHELL=zsh TEST_SUITE=install_script
-#  - SHELL=ksh TEST_SUITE=install_script
   - SHELL=sh TEST_SUITE=fast
   - SHELL=dash TEST_SUITE=fast
   - SHELL=bash TEST_SUITE=fast
diff --git a/test/install_script/nvm_reset b/test/install_script/nvm_reset
index 0f58ee4..9f8735a 100755
--- a/test/install_script/nvm_reset
+++ b/test/install_script/nvm_reset
@@ -15,7 +15,7 @@ safe_type() {
 safe_type nvm_reset || die 'nvm_reset is not available'
 
 # Apply nvm_reset
-nvm_reset
+nvm_reset || die 'nvm_reset failed'
 
 # The names should be unset
 ! safe_type nvm_do_install || die 'nvm_do_install is still available'