diff --git a/debian/changelog b/debian/changelog
index 4ec4729..f6ec522 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,11 @@
+xtrs (4.9c-3.5) unstable; urgency=medium
+
+  * Non-maintainer upload.
+  * Fix function declare: type of 'state' defaults to 'int' 
+     [-Werror=implicit-int] (Closes: #798765)
+
+ -- YunQiang Su <syq@debian.org>  Mon, 19 Oct 2015 01:22:15 +0800
+
 xtrs (4.9c-3.4) unstable; urgency=low
 
   * Non-maintainer upload.
diff --git a/trs_disk.c b/trs_disk.c
index f28fd4d..adad588 100644
--- a/trs_disk.c
+++ b/trs_disk.c
@@ -3124,7 +3124,7 @@ real_verify()
 }
 
 void
-real_restore(curdrive)
+real_restore(int curdrive)
 {
 #if __linux
   DiskState *d = &disk[curdrive];
diff --git a/trs_memory.c b/trs_memory.c
index 5d98e8c..eb9bcd6 100644
--- a/trs_memory.c
+++ b/trs_memory.c
@@ -149,7 +149,7 @@ void mem_map(int which)
     memory_map = which + (trs_model << 4) + (romin << 2);
 }
 
-void mem_romin(state)
+extern void mem_romin(int state)
 {
     romin = (state & 1);
     memory_map = (memory_map & ~4) + (romin << 2);
diff --git a/trs_printer.c b/trs_printer.c
index 8edd950..3352787 100644
--- a/trs_printer.c
+++ b/trs_printer.c
@@ -16,7 +16,7 @@
 #include "z80.h"
 #include "trs.h"
 
-void trs_printer_write(value)
+extern void trs_printer_write(int value)
 {
     if(value == 0x0D)
     {