diff --git a/Makefile.am b/Makefile.am
index 27b6c014..94f8f640 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -130,5 +130,5 @@ skein.o: skein.cu
 neoscrypt/cuda_neoscrypt.o: neoscrypt/cuda_neoscrypt.cu
 	$(NVCC)  -gencode=arch=compute_52,code=sm_52 -gencode=arch=compute_50,code=sm_50 -gencode=arch=compute_35,code=sm_35 -gencode=arch=compute_37,code=sm_37 @CUDA_INCLUDES@ -I. @CUDA_CFLAGS@ $(JANSSON_INCLUDES) --ptxas-options="-v" -o $@ -c $<
 
-neoscrypt/cuda_neoscrypt.o: neoscrypt/cuda_neoscrypt_tpruvot.cu
+neoscrypt/cuda_neoscrypt_tpruvot.o: neoscrypt/cuda_neoscrypt_tpruvot.cu
 	$(NVCC)  -gencode=arch=compute_52,code=sm_52 -gencode=arch=compute_50,code=sm_50 -gencode=arch=compute_35,code=sm_35 -gencode=arch=compute_37,code=sm_37 -gencode=arch=compute_30,code=sm_30 @CUDA_INCLUDES@ -I. @CUDA_CFLAGS@ $(JANSSON_INCLUDES) --ptxas-options="-v" -o $@ -c $<