diff --git a/test_conformance/computeinfo/conforming_version.cpp b/test_conformance/computeinfo/conforming_version.cpp
index 8c7eb29d..624cf85a 100644
--- a/test_conformance/computeinfo/conforming_version.cpp
+++ b/test_conformance/computeinfo/conforming_version.cpp
@@ -21,7 +21,7 @@
 int test_conformance_version(cl_device_id deviceID, cl_context context,
                              cl_command_queue ignoreQueue, int num_elements)
 {
-    auto version_string{ get_device_info_string(
+    std::string version_string{ get_device_info_string(
         deviceID, CL_DEVICE_LATEST_CONFORMANCE_VERSION_PASSED) };
 
     // Latest conformance version passed should match vYYYY-MM-DD-XX, where XX
@@ -34,4 +34,4 @@ int test_conformance_version(cl_device_id deviceID, cl_context context,
         "valid format vYYYY-MM-DD-XX");
 
     return TEST_PASS;
-}
\ No newline at end of file
+}