diff --git a/reactos/lib/crtdll/stdio/filbuf.c b/reactos/lib/crtdll/stdio/filbuf.c
index 2bab0044ae0..b9b008affe1 100644
--- a/reactos/lib/crtdll/stdio/filbuf.c
+++ b/reactos/lib/crtdll/stdio/filbuf.c
@@ -98,6 +98,7 @@ _filbuf(FILE *f)
     return EOF;
   }
 
+  f->_cnt--;
   return *f->_ptr++ & 0377;
 }
 
diff --git a/reactos/lib/msvcrt/stdio/filbuf.c b/reactos/lib/msvcrt/stdio/filbuf.c
index 955df6242ce..b98f48b0749 100644
--- a/reactos/lib/msvcrt/stdio/filbuf.c
+++ b/reactos/lib/msvcrt/stdio/filbuf.c
@@ -98,6 +98,7 @@ _filbuf(FILE *f)
     return EOF;
   }
 
+  f->_cnt--;
   return *f->_ptr++ & 0377;
 }