diff --git a/src/testdir/test_filetype.vim b/src/testdir/test_filetype.vim
index 0b8b52c..60e4f30 100644
--- a/src/testdir/test_filetype.vim
+++ b/src/testdir/test_filetype.vim
@@ -733,6 +733,11 @@
   filetype off
 endfunc
 
+" Content lines that should not result in filetype detection
+let s:false_positive_checks = {
+      \ '': [['test execve("/usr/bin/pstree", ["pstree"], 0x7ff0 /* 63 vars */) = 0']],
+      \ }
+
 " Filetypes detected from the file contents by scripts.vim
 let s:script_checks = {
       \ 'virata': [['% Virata'],
@@ -824,6 +829,7 @@
 endfunc
 
 func Test_script_detection()
+  call Run_script_detection(s:false_positive_checks)
   call Run_script_detection(s:script_checks)
   call Run_script_detection(s:script_env_checks)
 endfunc
diff --git a/src/version.c b/src/version.c
index 6c8d76e..c050afe 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1464,
+/**/
     1463,
 /**/
     1462,