diff --git a/src/utils/os.h b/src/utils/os.h
index 030eb9b8e..6232d9e69 100644
--- a/src/utils/os.h
+++ b/src/utils/os.h
@@ -61,6 +61,10 @@
 #define os_strlen(s) strlen((s))
 #endif
 
+#ifndef os_strncmp
+#define os_strncmp(s1, s2, n) strncmp((s1), (s2), (n))
+#endif
+
 struct find_dir_type {
   int proc_running;
   char *proc_name;