diff --git a/extra/project-euler/project-euler.factor b/extra/project-euler/project-euler.factor
index d85e7e206d..1e808e6321 100644
--- a/extra/project-euler/project-euler.factor
+++ b/extra/project-euler/project-euler.factor
@@ -1,7 +1,7 @@
 ! Copyright (c) 2007, 2008 Aaron Schaefer, Samuel Tardieu.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: definitions io io.files kernel math math.parser project-euler.ave-time
-    sequences vocabs vocabs.loader prettyprint
+USING: definitions io io.files kernel math math.parser
+    prettyprint project-euler.ave-time sequences vocabs vocabs.loader
     project-euler.001 project-euler.002 project-euler.003 project-euler.004
     project-euler.005 project-euler.006 project-euler.007 project-euler.008
     project-euler.009 project-euler.010 project-euler.011 project-euler.012
@@ -15,11 +15,12 @@ USING: definitions io io.files kernel math math.parser project-euler.ave-time
     project-euler.041 project-euler.042 project-euler.043 project-euler.044
     project-euler.045 project-euler.046 project-euler.047 project-euler.048
     project-euler.052 project-euler.053 project-euler.055 project-euler.056
-    project-euler.059 project-euler.067 project-euler.075 project-euler.076
-    project-euler.079 project-euler.092 project-euler.097 project-euler.100
-    project-euler.116 project-euler.117 project-euler.134 project-euler.148
-    project-euler.150 project-euler.151 project-euler.164 project-euler.169
-    project-euler.173 project-euler.175 project-euler.186 project-euler.190 ;
+    project-euler.059 project-euler.067 project-euler.071 project-euler.075
+    project-euler.076 project-euler.079 project-euler.092 project-euler.097
+    project-euler.100 project-euler.116 project-euler.117 project-euler.134
+    project-euler.148 project-euler.150 project-euler.151 project-euler.164
+    project-euler.169 project-euler.173 project-euler.175 project-euler.186
+    project-euler.190 ;
 IN: project-euler
 
 <PRIVATE