diff --git a/src/lib/eyd_compressor.hh b/src/lib/eyd_compressor.hh
index 0276a56..ae531fe 100644
--- a/src/lib/eyd_compressor.hh
+++ b/src/lib/eyd_compressor.hh
@@ -20,11 +20,12 @@ namespace EydLib {
 			BitGroup _rle;
 			BitGroup _last_group;
 			int _last_count;
+			int _group_size;
 			std::list<BitGroup> _compressed;
 
 
 		public:
-			BitCompressor();
+			BitCompressor::BitCompressor(int size);
 
 			void clear();
 			void append(BitGroup bg);
diff --git a/src/tools/bitcompress.cpp b/src/tools/bitcompress.cpp
index f846c56..f746dca 100644
--- a/src/tools/bitcompress.cpp
+++ b/src/tools/bitcompress.cpp
@@ -28,7 +28,7 @@ int main(int argc, char ** argv){
 	unsigned char c = (unsigned char)cell_size;
 	bitwrite.writeDirect(&c, 1);
 
-	EydLib::BitCompressor compressor;
+	EydLib::BitCompressor compressor(cell_size);
 
 	printf("File opened\n");