diff --git a/exercises/exercise-fluidsystem/README.md b/exercises/exercise-fluidsystem/README.md
index 2c6d37a0c91d8fa947afb21a44bcb58639d269cc..75694288bc5170484a2a981e52059cf5929d976a 100644
--- a/exercises/exercise-fluidsystem/README.md
+++ b/exercises/exercise-fluidsystem/README.md
@@ -106,7 +106,7 @@ private:
      * Uncomment second line and comment first line for using the compressible component
      */
     using LiquidMyComponentPhase = typename FluidSystems::OnePLiquid<Scalar, MyIncompressibleComponent<Scalar> >;
-    // using LiquidMyComponent = typename FluidSystems::OnePLiquid<Scalar, MyCompressibleComponent<Scalar> >;
+    // using LiquidMyComponentPhase = typename FluidSystems::OnePLiquid<Scalar, MyCompressibleComponent<Scalar> >;
 
 public:
     using type = typename FluidSystems::TwoPImmiscible<Scalar, LiquidWaterPhase, LiquidMyComponentPhase>;