diff --git a/1989/jar.2/.entry.json b/1989/jar.2/.entry.json
index 2d4d0193f..a5734d903 100644
--- a/1989/jar.2/.entry.json
+++ b/1989/jar.2/.entry.json
@@ -51,6 +51,14 @@
 	    "display_via_github" : true,
 	    "entry_text" : "input file"
 	},
+	{
+	    "file_path" : "try.lisp",
+	    "inventory_order" : 100,
+	    "OK_to_edit" : true,
+	    "display_as" : "lisp",
+	    "display_via_github" : true,
+	    "entry_text" : "input file"
+	},
 	{
 	    "file_path" : "try.sh",
 	    "inventory_order" : 100,
@@ -59,14 +67,6 @@
 	    "display_via_github" : true,
 	    "entry_text" : "script to try entry"
 	},
-	{
-	    "file_path" : "try.txt",
-	    "inventory_order" : 100,
-	    "OK_to_edit" : true,
-	    "display_as" : "text",
-	    "display_via_github" : false,
-	    "entry_text" : "input file"
-	},
 	{
 	    "file_path" : "1989_jar.2.tar.bz2",
 	    "inventory_order" : 1415926535,
diff --git a/1989/jar.2/README.md b/1989/jar.2/README.md
index 067fca80b..30a1439e4 100644
--- a/1989/jar.2/README.md
+++ b/1989/jar.2/README.md
@@ -24,7 +24,7 @@ NOTE: this entry will likely segfault on invalid input.
 
     ./try.sh chocolate_cake.lisp
 
-    ./try.sh try.txt
+    ./try.sh try.lisp
 ```
 
 
diff --git a/1989/jar.2/index.html b/1989/jar.2/index.html
index f255d547e..309cf625a 100644
--- a/1989/jar.2/index.html
+++ b/1989/jar.2/index.html
@@ -416,7 +416,7 @@ Location: <a href="../../location.html#US">US</a> - <em>United States of America
 
     ./try.sh chocolate_cake.lisp
 
-    ./try.sh try.txt</code></pre>
+    ./try.sh try.lisp</code></pre>
 <h2 id="judges-remarks">Judges’ remarks:</h2>
 <p>This is the most useful program submitted this year. It is a
 rather large subset of lisp. It has no error recovery, and
@@ -509,8 +509,8 @@ poor performance!</p>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1989/jar.2/jar.2.orig.c">jar.2.orig.c</a> - original source</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1989/jar.2/chocolate_cake.lisp">chocolate_cake.lisp</a> - input file</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1989/jar.2/fib.lisp">fib.lisp</a> - input file</li>
+<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1989/jar.2/try.lisp">try.lisp</a> - input file</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1989/jar.2/try.sh">try.sh</a> - script to try entry</li>
-<li><a href="try.txt">try.txt</a> - input file</li>
 </ul>
 <h2 id="secondary-files">Secondary files</h2>
 <ul>
diff --git a/1989/jar.2/try.txt b/1989/jar.2/try.lisp
similarity index 100%
rename from 1989/jar.2/try.txt
rename to 1989/jar.2/try.lisp
diff --git a/1989/jar.2/try.sh b/1989/jar.2/try.sh
index 9b66f5242..45967dee5 100755
--- a/1989/jar.2/try.sh
+++ b/1989/jar.2/try.sh
@@ -12,7 +12,7 @@ fi
 make CC="$CC" all || exit 1
 
 if [[ "$#" -lt 1 ]]; then
-    FILES="try.txt fib.lisp chocolate_cake.lisp"
+    FILES="try.lisp fib.lisp chocolate_cake.lisp"
 else
     FILES="$*"
 fi
diff --git a/tmp/manifest.csv b/tmp/manifest.csv
index 1c0274621..1ab4ced40 100644
--- a/tmp/manifest.csv
+++ b/tmp/manifest.csv
@@ -373,8 +373,8 @@
 1989,jar.2,jar.2.orig.c,50,false,c,true,original source
 1989,jar.2,chocolate_cake.lisp,100,true,lisp,true,input file
 1989,jar.2,fib.lisp,100,true,lisp,true,input file
+1989,jar.2,try.lisp,100,true,lisp,true,input file
 1989,jar.2,try.sh,100,true,shellscript,true,script to try entry
-1989,jar.2,try.txt,100,true,text,false,input file
 1989,jar.2,1989_jar.2.tar.bz2,1415926535,false,tbz2,false,download entry tarball
 1989,jar.2,README.md,4000000000,true,markdown,true,markdown source for this web page
 1989,jar.2,.entry.json,4000000000,true,json,true,entry summary and manifest in JSON
diff --git a/tmp/manifest.numbers b/tmp/manifest.numbers
index 264582e94..ac7ba8f5a 100644
Binary files a/tmp/manifest.numbers and b/tmp/manifest.numbers differ
diff --git a/tmp/path_list.found.txt b/tmp/path_list.found.txt
index c404180c4..52ebf5aa8 100644
--- a/tmp/path_list.found.txt
+++ b/tmp/path_list.found.txt
@@ -378,8 +378,8 @@
 1989/jar.2/index.html
 1989/jar.2/jar.2.c
 1989/jar.2/jar.2.orig.c
+1989/jar.2/try.lisp
 1989/jar.2/try.sh
-1989/jar.2/try.txt
 1989/ovdluhe/.entry.json
 1989/ovdluhe/.gitignore
 1989/ovdluhe/.path
diff --git a/tmp/path_list.manifest.txt b/tmp/path_list.manifest.txt
index c404180c4..52ebf5aa8 100644
--- a/tmp/path_list.manifest.txt
+++ b/tmp/path_list.manifest.txt
@@ -378,8 +378,8 @@
 1989/jar.2/index.html
 1989/jar.2/jar.2.c
 1989/jar.2/jar.2.orig.c
+1989/jar.2/try.lisp
 1989/jar.2/try.sh
-1989/jar.2/try.txt
 1989/ovdluhe/.entry.json
 1989/ovdluhe/.gitignore
 1989/ovdluhe/.path
diff --git a/tmp/path_list.required.txt b/tmp/path_list.required.txt
index 818941e01..9a1457f5d 100644
--- a/tmp/path_list.required.txt
+++ b/tmp/path_list.required.txt
@@ -265,8 +265,8 @@
 1989/jar.2/fib.lisp
 1989/jar.2/jar.2.c
 1989/jar.2/jar.2.orig.c
+1989/jar.2/try.lisp
 1989/jar.2/try.sh
-1989/jar.2/try.txt
 1989/ovdluhe/.entry.json
 1989/ovdluhe/.gitignore
 1989/ovdluhe/Makefile