diff --git a/gcc/cobol/parse.y b/gcc/cobol/parse.y
index c901bd66629..d8f5175adcb 100644
--- a/gcc/cobol/parse.y
+++ b/gcc/cobol/parse.y
@@ -30,9 +30,6 @@
 %code requires {
   #include <fstream>  // Before cobol-system because it uses poisoned functions
   #include "cobol-system.h"
-  #include <cmath>
-  #include <algorithm>
-  #include <map>
   #include "../../libgcobol/io.h"
   #include "../../libgcobol/ec.h"
 
@@ -216,9 +213,6 @@
   new_literal( const char initial[], enum radix_t radix );
 #pragma GCC diagnostic pop
 
-
-  #include <list>
-
   enum select_clause_t {
     access_clause_e        = 0x0001,
     alt_key_clause_e       = 0x0002,