diff --git a/nvm.sh b/nvm.sh
index 5dabce7..4332e08 100755
--- a/nvm.sh
+++ b/nvm.sh
@@ -2967,7 +2967,7 @@ nvm_iojs_version_has_solaris_binary() {
   IOJS_VERSION="$1"
   local STRIPPED_IOJS_VERSION
   STRIPPED_IOJS_VERSION="$(nvm_strip_iojs_prefix "${IOJS_VERSION}")"
-  if [ "_${STRIPPED_IOJS_VERSION}" = "${IOJS_VERSION}" ]; then
+  if [ "_${STRIPPED_IOJS_VERSION}" = "_${IOJS_VERSION}" ]; then
     return 1
   fi
 
diff --git a/test/fast/Unit tests/nvm_iojs_version_has_solaris_binary b/test/fast/Unit tests/nvm_iojs_version_has_solaris_binary
index 6394b1d..ab88516 100755
--- a/test/fast/Unit tests/nvm_iojs_version_has_solaris_binary	
+++ b/test/fast/Unit tests/nvm_iojs_version_has_solaris_binary	
@@ -10,6 +10,10 @@ assert_not_ok nvm_iojs_version_has_solaris_binary ""
 assert_not_ok nvm_iojs_version_has_solaris_binary "foo"
 assert_not_ok nvm_iojs_version_has_solaris_binary "v1.1.0"
 
+# Non-iojs versions should fail (version is unchanged after stripping iojs prefix)
+assert_not_ok nvm_iojs_version_has_solaris_binary "v4.0.0"
+assert_not_ok nvm_iojs_version_has_solaris_binary "v8.0.0"
+
 assert_ok nvm_iojs_version_has_solaris_binary "v3.3.1"
 assert_ok nvm_iojs_version_has_solaris_binary "iojs-v3.3.1"
 assert_ok nvm_iojs_version_has_solaris_binary "v3.3.2"