diff --git a/ChangeLog b/ChangeLog
index 1b7c52600f..020d09621e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,14 @@
+2015-02-25  Hussien Alameldin  <hussien@msu.edu>
+
+   * sandbox/bloom_count.py: renamed to bloom-count.py
+   * sandbox/bloom_count.pyc: renamed to bloom-count.pyc
+   * sandbox/bloom_count_intersection.py: renamed to 
+     bloom-count-intersection.py
+   * sandbox/bloom_count_intersection.pyc: renamed to 
+     bloom-count-intersection.pyc
+   * sandbox/read_aligner.py: renamed to read-aligner.py
+   * sandbox/read_aligner.pyc: renamed to read-aligner.pyc
+
 2015-02-25  Tamer A. Mansour  <drtamermansour@gmail.com>
 
    * scripts/normalize-by-median.py: change to the default behavior to
diff --git a/sandbox/bloom_count_intersection.py b/sandbox/bloom-count-intersection.py
similarity index 100%
rename from sandbox/bloom_count_intersection.py
rename to sandbox/bloom-count-intersection.py
diff --git a/sandbox/bloom_count.py b/sandbox/bloom-count.py
similarity index 100%
rename from sandbox/bloom_count.py
rename to sandbox/bloom-count.py
diff --git a/sandbox/read_aligner.py b/sandbox/read-aligner.py
similarity index 100%
rename from sandbox/read_aligner.py
rename to sandbox/read-aligner.py