diff --git a/CMakeLists.txt b/CMakeLists.txt
index e4fc768..ce44cfb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,5 +8,15 @@ set(CMAKE_D_FLAGS_DEBUG "${CMAKE_D_FLAGS_DEBUG} -funittest -g -O0 -Wall -Wdeprec
 set(CMAKE_D_FLAGS_RELEASE "${CMAKE_D_FLAGS_RELEASE} -O3 -Wall -Wdeprecated")
 
 option(REFERENCE_TIGER "Use the reference implementation of the tiger algorithm." OFF)
+set(READ_BUFF_SIZE "1024 * 16")
+
+#Just here to nicely print how big the read buffer will be, it doesn't really
+#do anything important.
+math(EXPR READ_BUFF_SIZE_RESULT "(${READ_BUFF_SIZE} / 64) * 64")
+if (${READ_BUFF_SIZE_RESULT} LESS 64)
+	set(READ_BUFF_SIZE_RESULT 64)
+endif()
+message(STATUS "Read buffer size will be ${READ_BUFF_SIZE_RESULT} bytes")
+unset(READ_BUFF_SIZE_RESULT)
 
 add_subdirectory(src)
diff --git a/src/tiger.d b/src/tiger.d
index ab54e68..18288d5 100644
--- a/src/tiger.d
+++ b/src/tiger.d
@@ -20,6 +20,8 @@ import std.string;
 import std.array, std.range;
 import std.algorithm;
 
+mixin(import("tigersumConfig.d"));
+
 private extern(C) void tiger (char* parMessage, ulong parLength, out ulong[3] parOut, char parPadding);
 private extern(C) void tiger_init (out ulong[3] parOut);
 private extern(C) void tiger_chunk (char* parMessage, ulong parLength, out ulong[3] parOut);
@@ -48,7 +50,7 @@ public ulong[3] getTiger (in string parData, bool parV2) {
 }
 
 public ulong[3] getTiger (ref File parData, bool parV2) {
-	const auto buff_length = 64 * 128;
+	const auto buff_length = 64 * READ_BUFF_BLOCKS;
 	char[] unaligned = new char[buff_length + ulong.alignof - 1];
 	size_t offset = ((cast(size_t)unaligned.ptr + (ulong.alignof - 1)) & ~cast(size_t)(ulong.alignof - 1)) - cast(size_t)unaligned.ptr;
 	assert(offset >= 0 && offset < ulong.alignof);
diff --git a/src/tigersumConfig.d.in b/src/tigersumConfig.d.in
index 1b832ab..816aae2 100644
--- a/src/tigersumConfig.d.in
+++ b/src/tigersumConfig.d.in
@@ -6,3 +6,5 @@ const string PROGRAM_NAME = "@PROJECT_NAME@";
 const string BACKEND_WEBSITE = "@BACKEND_WEBSITE@";
 const string BACKEND_NAME = "@BACKEND_NAME@";
 const string BACKEND_AUTHOR = "@BACKEND_AUTHOR@";
+
+const int READ_BUFF_BLOCKS = ((@READ_BUFF_SIZE@) / 64 < 1 ? 1 : (@READ_BUFF_SIZE@) / 64);