diff --git a/nvm.sh b/nvm.sh
index 3559367..aad67e1 100644
--- a/nvm.sh
+++ b/nvm.sh
@@ -1235,6 +1235,8 @@ nvm_get_arch() {
     EXIT_CODE=$?
     if [ $EXIT_CODE -ne 0 ]; then
       HOST_ARCH=$(isainfo -n)
+    else
+      HOST_ARCH=$(echo "$HOST_ARCH" | tail -1)
     fi
   else
      HOST_ARCH="$(command uname -m)"
diff --git a/test/fast/Unit tests/nvm_get_arch b/test/fast/Unit tests/nvm_get_arch
index b3fd51b..102c9da 100755
--- a/test/fast/Unit tests/nvm_get_arch	
+++ b/test/fast/Unit tests/nvm_get_arch	
@@ -32,6 +32,8 @@ setup_mock_arch() {
     ln -sf "${MOCKS_DIR}/isainfo_${ARCH}" ./isainfo
     if [ "_$OPT" != "_no_pkg_info" ]; then
       ln -sf "${MOCKS_DIR}/pkg_info_${ARCH}" ./pkg_info
+    else
+      ln -sf "${MOCKS_DIR}/pkg_info_fail" ./pkg_info
     fi
   fi
 
diff --git a/test/mocks/pkg_info_amd64 b/test/mocks/pkg_info_amd64
index 8437c2b..d25c527 100755
--- a/test/mocks/pkg_info_amd64
+++ b/test/mocks/pkg_info_amd64
@@ -1 +1,4 @@
+# On SmartOS 64bits setups, pkg_info outputs _both_ i386 and x86_64
+# architectures as architectures supported by pkg_install.
+echo "i386"
 echo "x86_64"
diff --git a/test/mocks/pkg_info_fail b/test/mocks/pkg_info_fail
new file mode 100755
index 0000000..379a4c9
--- /dev/null
+++ b/test/mocks/pkg_info_fail
@@ -0,0 +1 @@
+exit 1