diff --git a/src/input/r_mpeg_ts.cpp b/src/input/r_mpeg_ts.cpp
index 82af6030e..e404bcca0 100644
--- a/src/input/r_mpeg_ts.cpp
+++ b/src/input/r_mpeg_ts.cpp
@@ -285,11 +285,11 @@ static const uint32_t crc_table[256] = {
   0xbcb4666d, 0xb8757bda, 0xb5365d03, 0xb1f740b4
 };
 
-unsigned long
+uint32_t
 mpeg_ts_reader_c::calculate_crc32(unsigned char *data,
                                   int len) {
   register int i;
-  unsigned long crc = 0xffffffff;
+  uint32_t crc = 0xffffffff;
 
   for (i = 0; i < len; i++)
     crc = (crc << 8) ^ crc_table[((crc >> 24) ^ *data++) & 0xff];
diff --git a/src/input/r_mpeg_ts.h b/src/input/r_mpeg_ts.h
index a4b3aa48a..e6796fff4 100644
--- a/src/input/r_mpeg_ts.h
+++ b/src/input/r_mpeg_ts.h
@@ -200,7 +200,7 @@ public:
   virtual bool parse_packet(int id, unsigned char *buf);
 
 private:
-  unsigned long calculate_crc32(unsigned char *data, int len);
+  uint32_t calculate_crc32(unsigned char *data, int len);
   int parse_pat(unsigned char *pat);
   int parse_pmt(unsigned char *pmt);
   file_status_e finish();