diff --git a/lib/ast/if_expression.rb b/lib/ast/if_expression.rb
index 9a94ff1d..a52d7f40 100644
--- a/lib/ast/if_expression.rb
+++ b/lib/ast/if_expression.rb
@@ -11,6 +11,9 @@ module Ast
 
       puts "compiling if condition #{cond}"
       cond_val = cond.compile(context)
+      unless cond_val.is_a? Vm::BranchCondition
+        cond_val = cond_val.is_true? f
+      end
       f.b true_block , condition_code: cond_val.operator
       f.insertion_point.branch = true_block