diff --git a/cpu/D3Q19.cpp b/cpu/D3Q19.cpp
index 08f4dccf..45d1a4d4 100644
--- a/cpu/D3Q19.cpp
+++ b/cpu/D3Q19.cpp
@@ -1053,7 +1053,7 @@ extern "C" void ScaLBL_D3Q19_Momentum(double *dist, double *vel, int Np)
 	}
 }
 
-extern "C" void ScaLBL_D3Q19_Pressure(const double *dist, double *Pressure, int N)
+extern "C" void ScaLBL_D3Q19_Pressure(double *dist, double *Pressure, int N)
 {
 	int n;
 	// distributions