diff --git a/tests/qtest/cdrom-test.c b/tests/qtest/cdrom-test.c
index f2a8d91929..0945383789 100644
--- a/tests/qtest/cdrom-test.c
+++ b/tests/qtest/cdrom-test.c
@@ -37,17 +37,17 @@ static int exec_xorrisofs(const char **args)
     return exit_status;
 }
 
-static int prepare_image(const char *arch, char *isoimage)
+static int prepare_image(const char *arch, char *isoimagepath)
 {
     char srcdir[] = "cdrom-test-dir-XXXXXX";
     char *codefile = NULL;
     int ifh, ret = -1;
     const char *args[] = {
         "xorrisofs", "-quiet", "-l", "-no-emul-boot",
-        "-b", NULL, "-o", isoimage, srcdir, NULL
+        "-b", NULL, "-o", isoimagepath, srcdir, NULL
     };
 
-    ifh = mkstemp(isoimage);
+    ifh = mkstemp(isoimagepath);
     if (ifh < 0) {
         perror("Error creating temporary iso image file");
         return -1;