diff --git a/src/search.c b/src/search.c
index 01c143f..e5936d8 100644
--- a/src/search.c
+++ b/src/search.c
@@ -1548,6 +1548,7 @@
 			{
 			    vim_free(msgbuf);
 			    msgbuf = r;
+			    msgbuflen = STRLEN(msgbuf);
 			    // move reversed text to beginning of buffer
 			    while (*r != NUL && *r == ' ')
 				r++;
diff --git a/src/testdir/crash/reverse_text_overflow b/src/testdir/crash/reverse_text_overflow
new file mode 100644
index 0000000..dfbfe2c
--- /dev/null
+++ b/src/testdir/crash/reverse_text_overflow
Binary files differ
diff --git a/src/testdir/test_crash.vim b/src/testdir/test_crash.vim
index 800f3e5..302d373 100644
--- a/src/testdir/test_crash.vim
+++ b/src/testdir/test_crash.vim
@@ -150,6 +150,13 @@
     \ ' ; echo "crash 4: [OK]" >> '.. result .. "\<cr>")
   call TermWait(buf, 150)
 
+  let file = 'crash/reverse_text_overflow'
+  let cmn_args = "%s -u NONE -i NONE -n -X -m -n -e -s -S %s -c ':qa!'"
+  let args = printf(cmn_args, vim, file)
+  call term_sendkeys(buf, args ..
+    \ ' ; echo "crash 5: [OK]" >> '.. result .. "\<cr>")
+  call TermWait(buf, 150)
+
   " clean up
   exe buf .. "bw!"
   exe "sp " .. result
@@ -158,6 +165,7 @@
       \ 'crash 2: [OK]',
       \ 'crash 3: [OK]',
       \ 'crash 4: [OK]',
+      \ 'crash 5: [OK]',
       \ ]
 
   call assert_equal(expected, getline(1, '$'))
@@ -201,6 +209,7 @@
   let args = printf(cmn_args, vim, file)
   call term_sendkeys(buf, args)
   call TermWait(buf, 150)
+  call delete('Untitled')
 
   let file = 'crash/nullpointer'
   let cmn_args = "%s -u NONE -i NONE -n -e -s -S %s -c ':qa!'\<cr>"
diff --git a/src/version.c b/src/version.c
index e77ef0f..05ae6ca 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    689,
+/**/
     688,
 /**/
     687,