diff --git a/utils/drmprocessorclientimpl.cpp b/utils/drmprocessorclientimpl.cpp
index 2f1a45f..eca974c 100644
--- a/utils/drmprocessorclientimpl.cpp
+++ b/utils/drmprocessorclientimpl.cpp
@@ -68,7 +68,13 @@ DRMProcessorClientImpl::DRMProcessorClientImpl():
     strcpy(cookiejar, "/tmp/libgourou_cookie_jar_XXXXXX");
 #endif
     
-    mkstemp(cookiejar);
+    int fd = mkstemp(cookiejar);
+    if (fd >= 0)
+	close(fd);
+    else
+    {
+	EXCEPTION(gourou::CLIENT_FILE_ERROR, "mkstemp error");
+    }
 }
 
 DRMProcessorClientImpl::~DRMProcessorClientImpl()