diff --git a/test_conformance/printf/CMakeLists.txt b/test_conformance/printf/CMakeLists.txt
index 914ffb58..a5c23bcb 100644
--- a/test_conformance/printf/CMakeLists.txt
+++ b/test_conformance/printf/CMakeLists.txt
@@ -1,5 +1,7 @@
 set(MODULE_NAME PRINTF)
 
+set(CMAKE_CXX_STANDARD 11)
+
 set(${MODULE_NAME}_SOURCES
          test_printf.c
          util_printf.c
diff --git a/test_conformance/printf/test_printf.c b/test_conformance/printf/test_printf.c
index 15e6d41d..fc89b744 100644
--- a/test_conformance/printf/test_printf.c
+++ b/test_conformance/printf/test_printf.c
@@ -409,6 +409,7 @@ static int doTest(cl_command_queue queue, cl_context context, const unsigned int
     char _analysisBuffer[ANALYSIS_BUFFER_SIZE];
     cl_uint out32 = 0;
     cl_ulong out64 = 0;
+    int fd = -1;
 
    // Define an index space (global work size) of threads for execution.
    size_t globalWorkSize[1];
@@ -455,7 +456,7 @@ static int doTest(cl_command_queue queue, cl_context context, const unsigned int
         }
     }
 
-    int fd = acquireOutputStream();
+    fd = acquireOutputStream();
     globalWorkSize[0] = 1;
     cl_event ndrEvt;
     err = clEnqueueNDRangeKernel(queue, kernel, 1, NULL, globalWorkSize, NULL, 0, NULL,&ndrEvt);