diff --git a/ChangeLog b/ChangeLog
index ed53bce0..415d8341 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2008-01-06  Nicolas François  <nicolas.francois@centraliens.net>
+
+	* lib/nscd.c, lib/nscd.h: Set the service parameter of
+	nscd_flush_cache() to const. This avoids a lot of warnings.
+	* lib/nscd.c: Include "nscd.h" to avoid inconsistent prototypes.
+
 2008-01-06  Nicolas François  <nicolas.francois@centraliens.net>
 
 	* lib/encrypt.c: Set the method string as a constant string.
diff --git a/lib/nscd.c b/lib/nscd.c
index baa5f6e5..10cb69c3 100644
--- a/lib/nscd.c
+++ b/lib/nscd.c
@@ -11,12 +11,12 @@
 #include <errno.h>
 #include <sys/wait.h>
 #include <sys/types.h>
-
+#include "nscd.h"
 
 /*
  * nscd_flush_cache - flush specified service buffer in nscd cache
  */
-int nscd_flush_cache (char *service)
+int nscd_flush_cache (const char *service)
 {
 	pid_t pid, termpid;
 	int err, status;
diff --git a/lib/nscd.h b/lib/nscd.h
index dc986ae1..8bb10a8d 100644
--- a/lib/nscd.h
+++ b/lib/nscd.h
@@ -4,6 +4,6 @@
 /*
  * nscd_flush_cache - flush specified service buffer in nscd cache
  */
-extern int nscd_flush_cache (char *service);
+extern int nscd_flush_cache (const char *service);
 
 #endif