diff --git a/include/pbf_processor.h b/include/pbf_processor.h
index ae555865..abd43bc6 100644
--- a/include/pbf_processor.h
+++ b/include/pbf_processor.h
@@ -3,6 +3,7 @@
 #define _READ_PBF_H
 
 #include <atomic>
+#include <ios>
 #include <string>
 #include <unordered_set>
 #include <vector>
@@ -20,7 +21,7 @@ extern const std::string OptionSortTypeThenID;
 extern const std::string OptionLocationsOnWays;
 
 struct BlockMetadata {
-	long int offset;
+	std::streamoff offset;
 	int32_t length;
 	bool hasNodes;
 	bool hasWays;
diff --git a/src/pbf_processor.cpp b/src/pbf_processor.cpp
index 61147944..cea28bb7 100644
--- a/src/pbf_processor.cpp
+++ b/src/pbf_processor.cpp
@@ -538,7 +538,7 @@ int PbfProcessor::ReadPbfFile(
 			break;
 		}
 
-		blocks[blocks.size()] = { (long int)infile->tellg(), bh.datasize, true, true, true, 0, 1 };
+		blocks[blocks.size()] = { static_cast<std::streamoff>(infile->tellg()), bh.datasize, true, true, true, 0, 1 };
 		infile->seekg(bh.datasize, std::ios_base::cur);
 	}