diff --git a/psys/include/p2c/strings.h b/psys/include/p2c/strings.h
index 4c2b47f1c03111abdf606f92486f84fc619d697c..6e7d2b6aab8ff351ab302a935bd812aef79dddb9 100644
--- a/psys/include/p2c/strings.h
+++ b/psys/include/p2c/strings.h
@@ -50,7 +50,7 @@ extern void strcomment (char *s, char* bracket);
 extern void strcompress (char *s, char *chars, int all);
 extern void strdispose (char **sp);
 extern void strchange (char** sp, char *);
-extern char *strcpy_overlap(char *dst, char *src);
+extern char *strcpy_overlap(char *dst, char *src) DEPRECATED;
 
 #endif