diff --git a/src/NetworkManagerUtils.c b/src/NetworkManagerUtils.c
index aa689ce05..fc85b0040 100644
--- a/src/NetworkManagerUtils.c
+++ b/src/NetworkManagerUtils.c
@@ -44,6 +44,15 @@
 #include "nm-manager-auth.h"
 #include "nm-posix-signals.h"
 
+/*
+ * Some toolchains (E.G. uClibc 0.9.33 and earlier) don't export
+ * CLOCK_BOOTTIME even though the kernel supports it, so provide a
+ * local definition
+ */
+#ifndef CLOCK_BOOTTIME
+#define CLOCK_BOOTTIME 7
+#endif
+
 /*
  * nm_ethernet_address_is_valid
  *