diff --git a/Makefile b/Makefile
index 68608f9..1cbcea5 100644
--- a/Makefile
+++ b/Makefile
@@ -15,8 +15,9 @@ FLAGS += -mcpu=arm1176jzf-s -mtune=arm1176jzf-s -march=armv6zk -mfpu=vfp
 endif
 
 ifdef USE_RPI_GPU_FFT
+LDLIBS += -ldl
 GPU_FLAGS = -DUSE_RPI_GPU_FFT
-GPU_SRC   = src/mailbox.c src/gpu_fft.c src/gpu_fft_twiddles.c src/gpu_fft_shaders.c
+GPU_SRC   = src/mailbox.c src/gpu_fft.c src/gpu_fft_base.c src/gpu_fft_twiddles.c src/gpu_fft_shaders.c
 endif
 
 #####