diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index aa094d9f64a7cc9debc3bc069b28f8398a62508f..0000000000000000000000000000000000000000
--- a/requirements.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-numpy
-matplotlib
diff --git a/src/flankBed/flankBed.cpp b/src/flankBed/flankBed.cpp
index 491f0e894ff355fd3f2b556376b559f94e1ed0c4..a5eb2b3d472abedcd831003a26ac8923a478d83b 100644
--- a/src/flankBed/flankBed.cpp
+++ b/src/flankBed/flankBed.cpp
@@ -85,6 +85,9 @@ void BedFlank::AddFlank(BED &bed, int leftFlank, int rightFlank) {
     BED left  = bed;
     BED right = bed;
     
+    left.zeroLength = false;
+    right.zeroLength = false;
+    
     // make the left flank (if necessary)
     if ((leftFlank > 0) && (left.start != 0)) {
         if ( (static_cast<int>(left.start) - leftFlank) > 0)