diff --git a/src/cuda.h b/src/cuda.h
index 29b1eefc..32aaabb4 100644
--- a/src/cuda.h
+++ b/src/cuda.h
@@ -1,6 +1,10 @@
 #ifndef CUDA_H
 #define CUDA_H
 
+#if defined(_MSC_VER) && _MSC_VER < 1900
+	#define inline __inline
+#endif
+
 extern int gpu_index;
 
 #ifdef GPU
diff --git a/src/data.h b/src/data.h
index 3f6ef610..618d89cf 100644
--- a/src/data.h
+++ b/src/data.h
@@ -2,6 +2,10 @@
 #define DATA_H
 #include <pthread.h>
 
+#if defined(_MSC_VER) && _MSC_VER < 1900
+	#define inline __inline
+#endif
+
 #include "matrix.h"
 #include "list.h"
 #include "image.h"
diff --git a/src/utils.h b/src/utils.h
index bbc67654..f569d77c 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -4,6 +4,10 @@
 #include <time.h>
 #include "list.h"
 
+#if defined(_MSC_VER) && _MSC_VER < 1900
+	#define snprintf(buf,len, format,...) _snprintf_s(buf, len,len, format, __VA_ARGS__)
+#endif
+
 #define SECRET_NUM -1234
 #define TWO_PI 6.2831853071795864769252866