diff --git a/ext/lsm1/lsm_vtab.c b/ext/lsm1/lsm_vtab.c
index 0855621160..e2ca376b09 100644
--- a/ext/lsm1/lsm_vtab.c
+++ b/ext/lsm1/lsm_vtab.c
@@ -595,6 +595,7 @@ int lsm1Update(
 ){
   lsm1_vtab *p = (lsm1_vtab*)pVTab;
   const void *pKey;
+  void *pFree = 0;
   int nKey;
   int eType;
   int rc = LSM_OK;
@@ -629,6 +630,7 @@ int lsm1Update(
                        (unsigned char**)&pKey,&nKey,
                        pSpace,sizeof(pSpace));
     if( rc ) return rc;
+    if( pKey!=(const void*)pSpace ) pFree = (void*)pKey;
   }
   if( sqlite3_value_type(argv[2+LSM1_COLUMN_BLOBVALUE])==SQLITE_BLOB ){
     pVal = sqlite3_value_blob(argv[2+LSM1_COLUMN_BLOBVALUE]);
@@ -683,7 +685,7 @@ int lsm1Update(
       }
     }
   }
-  if( pKey!=(const void*)pSpace ) sqlite3_free((void*)pKey);
+  sqlite3_free(pFree);
   return rc==LSM_OK ? SQLITE_OK : SQLITE_ERROR;
 }      
 
diff --git a/ext/lsm1/test/lsm1_common.tcl b/ext/lsm1/test/lsm1_common.tcl
new file mode 100644
index 0000000000..6a5730ecaa
--- /dev/null
+++ b/ext/lsm1/test/lsm1_common.tcl
@@ -0,0 +1,35 @@
+# 2014 Dec 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. .. test]
+}
+source $testdir/tester.tcl
+
+# Check if the lsm1 extension has been compiled.
+set lsm1 lsm1.so
+if {[file exists [file join .. $lsm1]]} {
+  proc return_if_no_lsm1 {} {}
+} else {
+  proc return_if_no_lsm1 {} {
+    finish_test
+    return -code return
+  }
+  return
+}
+
+proc load_lsm1_vtab {db} {
+  db enable_load_extension 1
+  db eval {SELECT load_extension('../lsm1')}
+}
+
+
diff --git a/ext/lsm1/test/lsm1_simple.test b/ext/lsm1/test/lsm1_simple.test
new file mode 100644
index 0000000000..c2f711df2b
--- /dev/null
+++ b/ext/lsm1/test/lsm1_simple.test
@@ -0,0 +1,56 @@
+# 2017 July 14
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the lsm1 virtual table module.
+#
+
+source [file join [file dirname [info script]] lsm1_common.tcl]
+set testprefix lsm1_simple
+return_if_no_lsm1
+load_lsm1_vtab db
+
+forcedelete testlsm.db
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE x1 USING lsm1(testlsm.db);
+  PRAGMA table_info(x1);
+} {
+  0 key       {} 0 {} 0 
+  1 blobkey   {} 0 {} 0 
+  2 value     {} 0 {} 0 
+  3 blobvalue {} 0 {} 0
+}
+
+do_execsql_test 1.1 {
+  INSERT INTO x1(blobkey, blobvalue) VALUES(x'abcd', x'1234');
+  SELECT quote(blobkey), quote(blobvalue) FROM x1;
+} {X'ABCD' X'1234'}
+
+do_catchsql_test 1.2 {
+  UPDATE x1 SET blobvalue = x'7890' WHERE blobkey = x'abcd';
+} {1 {cannot UPDATE}}
+
+do_catchsql_test 1.3 {
+  DELETE FROM x1 WHERE blobkey = x'abcd'
+} {1 {cannot DELETE}}
+
+do_test 1.4 {
+  lsort [glob testlsm.db*]
+} {testlsm.db testlsm.db-log testlsm.db-shm}
+
+db close
+do_test 1.5 {
+  lsort [glob testlsm.db*]
+} {testlsm.db}
+
+finish_test
+
+
diff --git a/manifest b/manifest
index cc3e96fde4..d143646078 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Minor\stweaks\sto\sdocumentation.\s\sNo\scode\schanges.
-D 2017-07-14T04:16:03.173
+C Add\svery\ssimple\stcl\stests\sfor\sthe\slsm1\sextension.
+D 2017-07-14T11:40:48.489
 F Makefile.in 081e48dfe7f995d57ce1a88ddf4d2917b4349158648a6cd45b42beae30de3a12
 F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
 F Makefile.msc 20850e3e8d4d4791e0531955852d768eb06f24138214870d543abb1a47346fba
@@ -249,8 +249,10 @@ F ext/lsm1/lsm_str.c 65e361b488c87b10bf3e5c0070b14ffc602cf84f094880bece77bbf6678
 F ext/lsm1/lsm_tree.c 682679d7ef2b8b6f2fe77aeb532c8d29695bca671c220b0abac77069de5fb9fb
 F ext/lsm1/lsm_unix.c 57361bcf5b1a1a028f5d66571ee490e9064d2cfb145a2cc9e5ddade467bb551b
 F ext/lsm1/lsm_varint.c 43f954af668a66c7928b81597c14d6ad4be9fedbc276bbd80f52fa28a02fdb62
-F ext/lsm1/lsm_vtab.c e4afff67205741075b74d6c598f9f9967bbdec8eb306bdc7cc1dcd0c71bffbd9
+F ext/lsm1/lsm_vtab.c 62631565e8d8412b2509dec1929ce7dd2a3322f14fe468582734fa9d1fd20ba2
 F ext/lsm1/lsm_win32.c 0a4acbd7e8d136dd3a5753f0a9e7a9802263a9d96cef3278cf120bcaa724db7c
+F ext/lsm1/test/lsm1_common.tcl e0c18a67d77e9179f12a28b214d8a130fa41afe9f944978cf22ef3d357dd1f18
+F ext/lsm1/test/lsm1_simple.test 3bb38951450cd1f12a6c294949334d6fbb109a3da38c48eaf0877a37c43a0fab
 F ext/misc/README.md 8e008c8d2b02e09096b31dfba033253ac27c6c06a18aa5826e299fa7601d90b2
 F ext/misc/amatch.c 6db4607cb17c54b853a2d7c7c36046d004853f65b9b733e6f019d543d5dfae87
 F ext/misc/anycollseq.c 5ffdfde9829eeac52219136ad6aa7cd9a4edb3b15f4f2532de52f4a22525eddb
@@ -1083,7 +1085,7 @@ F test/parser1.test 391b9bf9a229547a129c61ac345ed1a6f5eb1854
 F test/pcache.test c8acbedd3b6fd0f9a7ca887a83b11d24a007972b
 F test/pcache2.test af7f3deb1a819f77a6d0d81534e97d1cf62cd442
 F test/percentile.test 4243af26b8f3f4555abe166f723715a1f74c77ff
-F test/permutations.test 8aaa22a0f428a7e6b8446b97bc7691a273eaeff5dc290fb9129bf79fa9813a6e
+F test/permutations.test 38215423f5aaddcb4f529a112fea7a5dec185067fa8b96e8f8b7fcaba853d854
 F test/pragma.test f274259d6393b6681eb433beb8dd39a26ec06a4431052a4880b43b84912a3f58
 F test/pragma2.test e5d5c176360c321344249354c0c16aec46214c9f
 F test/pragma3.test 14c12bc5352b1e100e0b6b44f371053a81ccf8ed
@@ -1631,7 +1633,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 271ca4acfcff448cf863045595d2c2616decd13b6015d7db481c91e2ad5bb92a
-R 95f34dc529fd01e526d64b6cdd87380f
-U drh
-Z 9a58d18d69ad068ec72e9b779aa9ec21
+P d8cd0434f3451e27aefe38a1a9efdc4dfded2ea33baf25d82814c89264f3afff
+R 7035e4b35bda7a767a761f8f0be07308
+U dan
+Z fcf2323755b85655ac78a15cd2fe4ee2
diff --git a/manifest.uuid b/manifest.uuid
index 4543037fe6..4fc5e77be4 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-d8cd0434f3451e27aefe38a1a9efdc4dfded2ea33baf25d82814c89264f3afff
\ No newline at end of file
+5e0a97930b08fff1c3a29f5c8b2962b856e3302209228c0e71b9f1a1bd2a4be3
\ No newline at end of file
diff --git a/test/permutations.test b/test/permutations.test
index 92eb2eec07..149a22d1b1 100644
--- a/test/permutations.test
+++ b/test/permutations.test
@@ -89,7 +89,8 @@ foreach f [glob $testdir/*.test] { lappend alltests [file tail $f] }
 foreach f [glob -nocomplain       \
     $testdir/../ext/rtree/*.test  \
     $testdir/../ext/fts5/test/*.test   \
-] { 
+    $testdir/../ext/lsm1/test/*.test   \
+] {
   lappend alltests $f 
 }
 foreach f [glob -nocomplain $testdir/../ext/session/*.test] {