diff --git a/Bitmapper_main.cpp b/Bitmapper_main.cpp
index 0576843..7d7f328 100644
--- a/Bitmapper_main.cpp
+++ b/Bitmapper_main.cpp
@@ -339,13 +339,25 @@ int main(int argc, char *argv[])
 		fprintf(stderr, "genome_cuts: %d\n", genome_cuts);
 		fprintf(stderr, "PE_distance: %d\n", maxDistance_pair);
 
-		init_output_methy(Read_File1, need_context);
+
+
+		char outputFileName[NAME_LENGTH];
+		if(Mapped_File)
+		{
+			sprintf(outputFileName, "%s%s",Mapped_FilePath , Mapped_File);
+		}
+		else
+		{
+			sprintf(outputFileName, "output");
+		}
+		///init_output_methy(Read_File1, need_context);
+		init_output_methy(outputFileName, need_context);
 
 		Prepare_methy(fileName[0], chhy_ih_refGenName, refChromeCont);
 
 		
 		
-
+		THREAD_COUNT = 1;
 		///int PE_distance = 500;
 		
 		if (!is_pairedEnd)
diff --git a/README.md b/README.md
index 05649f5..d36350b 100644
--- a/README.md
+++ b/README.md
@@ -226,6 +226,10 @@ The output file of BitMapperBS must be first sorted into a coordinate-sorted BAM
 
 ### Changelog ###
 
+(16) September 9, 2019: version 1.0.2.2 released. 
+
+    >> Revise the output option of methylation extraction.
+
 (16) August 24, 2019: version 1.0.2.1 released. 
 
     >> Fix the bug in version 1.0.2.0.
diff --git a/Schema.cpp b/Schema.cpp
index f15e083..18d834b 100644
--- a/Schema.cpp
+++ b/Schema.cpp
@@ -81,7 +81,7 @@ int8_t mat_diff[25] = {
 _rg_name_l  *_ih_refGenName;
 int refChromeCont;
 
-char *versionN = "1.0.2.1";
+char *versionN = "1.0.2.2";
 long long mappingCnt[MAX_Thread];
 unsigned int done;
 long long mappedSeqCnt[MAX_Thread];