diff --git a/_plugins/csv_block.rb b/_plugins/csv_block.rb
index 598f288..530e9ea 100644
--- a/_plugins/csv_block.rb
+++ b/_plugins/csv_block.rb
@@ -157,7 +157,7 @@ def evaluate_formula_at_index_internal(col_index, row_index, table_data, visitin
         end
       end
 
-      evaluated_result = @calculator.evaluate(formula_with_values) or raise "Error: #{col_index_to_val(col_index)}#{row_index_to_val(row_index)} uses invalid formula: #{formula}"
+      evaluated_result = @calculator.evaluate(formula_with_values) or raise "Error: #{col_index_to_val(col_index)}#{row_index_to_val(row_index)} uses invalid formula: #{formula_with_values}"
 
       @evaluation_cache[cell_key] = evaluated_result
       evaluated_result
diff --git a/_spec/csv_block_spec.rb b/_spec/csv_block_spec.rb
index 27d21e6..cb79095 100644
--- a/_spec/csv_block_spec.rb
+++ b/_spec/csv_block_spec.rb
@@ -112,6 +112,15 @@ def render_csv_block(content, tag_options = "")
     expect(output).to include('<td>250</td>')
   end
 
+  it 'understands currency?' do
+    csv_content = "$100\n$150\n=SUM(A1:A2)"
+    output = render_csv_block(csv_content, "header:false")
+
+    # Alas, for now.
+    # expect(output).to include('<td>$250</td>')
+    expect(output).to include('<td>Error: A3 uses invalid formula: SUM($100,$150)</td>')
+  end
+
   it 'evaluates formulas with rectangular references' do
     csv_content = "1, 10, =SUM(A1:B1)\n100, 1000, =SUM(A2:B2)\n=SUM(A1:A2), =SUM(B1:B2), =SUM(A1:B2)"
     output = render_csv_block(csv_content, "header:false")