diff --git a/bootstrap.conf b/bootstrap.conf
index 6070204886..6e10828814 100644
--- a/bootstrap.conf
+++ b/bootstrap.conf
@@ -63,6 +63,7 @@ sigpipe
 snprintf
 socket
 stpcpy
+strcasestr
 strchrnul
 strndup
 strerror
diff --git a/src/qemu/qemu_monitor_text.c b/src/qemu/qemu_monitor_text.c
index fc19f72211..e0e32929db 100644
--- a/src/qemu/qemu_monitor_text.c
+++ b/src/qemu/qemu_monitor_text.c
@@ -934,7 +934,7 @@ int qemuMonitorTextEjectMedia(qemuMonitorPtr mon,
     /* If the command failed qemu prints:
      * device not found, device is locked ...
      * No message is printed on success it seems */
-    if (strstr(reply, "device ")) {
+    if (strcasestr(reply, "device ")) {
         qemuReportError(VIR_ERR_OPERATION_FAILED,
                         _("could not eject media on %s: %s"), devname, reply);
         goto cleanup;