diff --git a/bin/default-open b/bin/default-open
index 4ef2534..a0fb761 100755
--- a/bin/default-open
+++ b/bin/default-open
@@ -2,7 +2,7 @@
 
 mimetype=$1
 original=$2
-ext=$(grep "$mimetype" /etc/mime.types | awk '{print $2}')
+ext=$(grep "$mimetype" /etc/mime.types | head -n 1 | awk '{print $2}')
 
 destination=$(mktemp --suffix=".$ext")
 cp $original $destination