diff --git a/src/cfgparse.l b/src/cfgparse.l
index c54d346c..afe5c84e 100644
--- a/src/cfgparse.l
+++ b/src/cfgparse.l
@@ -1,3 +1,6 @@
+%option nounput
+%option noinput
+
 %{
 /*
  * vim:ts=8:expandtab
diff --git a/src/cfgparse.y b/src/cfgparse.y
index a1c7aeef..8a358454 100644
--- a/src/cfgparse.y
+++ b/src/cfgparse.y
@@ -22,8 +22,12 @@
 #include "workspace.h"
 #include "xcb.h"
 
+
+typedef struct yy_buffer_state *YY_BUFFER_STATE;
 extern int yylex(void);
+extern int yyparse(void);
 extern FILE *yyin;
+YY_BUFFER_STATE yy_scan_string(const char *);
 
 static struct bindings_head *current_bindings;