diff --git a/src/metagen/metagen.c b/src/metagen/metagen.c
index 838328c5..5da28126 100644
--- a/src/metagen/metagen.c
+++ b/src/metagen/metagen.c
@@ -372,7 +372,7 @@ mg_str_expr_parse_from_first_opl__min_prec(Arena *arena, MD_Node *first, MD_Node
     
     //- rjf: consume prefix operators
     MG_StrExpr *leafmost_op = &mg_str_expr_nil;
-    for(;it < opl && !md_node_is_nil(it);)
+    for(;it != opl && !md_node_is_nil(it);)
     {
       MG_StrExprOp found_op = MG_StrExprOp_Null;
       for(MG_StrExprOp op = (MG_StrExprOp)(MG_StrExprOp_Null+1);
@@ -431,7 +431,7 @@ mg_str_expr_parse_from_first_opl__min_prec(Arena *arena, MD_Node *first, MD_Node
     }
     
     //- rjf: parse binary operator extensions at this precedence level
-    for(;it < opl && !md_node_is_nil(it);)
+    for(;it != opl && !md_node_is_nil(it);)
     {
       // rjf: find binary op kind of `it`
       MG_StrExprOp found_op = MG_StrExprOp_Null;