diff --git a/detector.py b/detector.py
index 86be950..7c20f18 100644
--- a/detector.py
+++ b/detector.py
@@ -77,7 +77,7 @@ def build(path, db):
 @click.argument('output', type=click.Path())
 def blast(fasta, db, output):
     """
-    Runs Blast
+    Runs Blast.
 
     usage: detector blast FASTA DB OUTPUT
 
@@ -86,7 +86,7 @@ def blast(fasta, db, output):
 
     click.secho("Running BLASTP... ", fg='green', bold=True)
 
-    cmd = BUILD_DB_CMD % (fasta, db, output)
+    cmd = RUN_BLAST_CMD % (fasta, db, output)
     click.echo("Executing command: %s" % cmd)
     subprocess.call(shlex.split(cmd))