1 files changed, 1 insertions, 1 deletions
diff --git a/env.c b/env.c
index d578f0c6..6b6a7d07 100644
--- a/env.c
+++ b/env.c
@@ -30,7 +30,7 @@
 #include <locale.h>
 #endif
 
-extern char *getenv();	/* needed on sysV68 R3V7.1. */
+extern char *getenv(const char *);	/* needed on sysV68 R3V7.1. */
 
 extern char *program_name;