diff --git a/gpu/ScaLBL.h b/gpu/ScaLBL.h
index 80681127..538ce9ea 100644
--- a/gpu/ScaLBL.h
+++ b/gpu/ScaLBL.h
@@ -8,8 +8,6 @@ extern "C" void SwapD3Q19(char *ID, double *disteven, double *distodd, int Nx, i
 
 extern "C" void MRT(char *ID, double *f_even, double *f_odd, double rlxA, double rlxB, double Fx, double Fy, double Fz,int Nx, int Ny, int Nz);
 
-extern "C" void InitD3Q19(char *ID, double *f_even, double *f_odd, int Nx, int Ny, int Nz);
-
 extern "C" void ComputeVelocityD3Q19(char *ID, double *disteven, double *distodd, double *vel,
 				int Nx, int Ny, int Nz);