diff --git a/src/treeopt.in b/src/treeopt.in
index d500457736c74f4cf184bb51b1289674f52d0bfa..49b39f3815a462b83729f83d75ce33f1dc24f7e0 100644
--- a/src/treeopt.in
+++ b/src/treeopt.in
@@ -1613,25 +1613,29 @@ F_LOOP(0 = +[ !depend_p($$, $$)]
 ;
 
 // convert all X_EQ(1,2) to $1 = $1 X $2 
-F_ADD_EQ(0,1) : {
+F_ADD_EQ(0,1) :
+{
   struct pike_type *type = $0->type;
   add_ref(type);
   $$ = mknode( F_ASSIGN, mksoftcastnode(type,mkopernode( "`+", $0, $1 )), $0 );
 };
 
-F_SUB_EQ(0,1) : {
+F_SUB_EQ(0,1) :
+{
   struct pike_type *type = $0->type;
   add_ref(type);
   $$ = mknode( F_ASSIGN, mksoftcastnode(type,mkopernode( "`-", $0, $1 )), $0 );
 };
 
-F_AND_EQ(0,1) : {
+F_AND_EQ(0,1) :
+{
   struct pike_type *type = $0->type;
   add_ref(type);
   $$ = mknode( F_ASSIGN, mksoftcastnode(type,mkopernode( "`&", $0, $1 )), $0 );
 };
 
-F_OR_EQ(0,1)  : {
+F_OR_EQ(0,1)  :
+{
   struct pike_type *type = $0->type;
   add_ref(type);
   $$ = mknode( F_ASSIGN, mksoftcastnode(type,mkopernode( "`|", $0, $1 )), $0 );