diff --git a/arm_compute/runtime/CL/functions/CLMeanStdDevNormalizationLayer.h b/arm_compute/runtime/CL/functions/CLMeanStdDevNormalizationLayer.h
index 1627de1..cfe59ea 100644
--- a/arm_compute/runtime/CL/functions/CLMeanStdDevNormalizationLayer.h
+++ b/arm_compute/runtime/CL/functions/CLMeanStdDevNormalizationLayer.h
@@ -29,7 +29,9 @@
 
 namespace arm_compute
 {
+class CLCompileContext;
 class ICLTensor;
+class ITensorInfo;
 
 /** Basic function to execute mean and standard deviation normalization by calling @ref CLMeanStdDevNormalizationKernel */
 class CLMeanStdDevNormalizationLayer : public ICLSimpleFunction