diff --git a/src/exec_common.c b/src/exec_common.c
index 83dfcd23b..1a54dd9c3 100644
--- a/src/exec_common.c
+++ b/src/exec_common.c
@@ -138,7 +138,7 @@ disable_execute(char *const envp[])
  * ala execvp(3) if we get ENOEXEC.
  */
 int
-sudo_execve(const char *path, char *const argv[], char *const envp[], int noexec)
+sudo_execve(const char *path, char *const argv[], char *const envp[], bool noexec)
 {
     /* Modify the environment as needed to disable further execve(). */
     if (noexec)
diff --git a/src/selinux.c b/src/selinux.c
index f519ea14a..f81884a83 100644
--- a/src/selinux.c
+++ b/src/selinux.c
@@ -407,7 +407,7 @@ selinux_execve(const char *path, char *const argv[], char *const envp[],
     memcpy(&nargv[2], &argv[1], argc * sizeof(char *)); /* copies NULL */
 
     /* sesh will handle noexec for us. */
-    sudo_execve(sesh, nargv, envp, 0);
+    sudo_execve(sesh, nargv, envp, false);
     serrno = errno;
     free(nargv);
     errno = serrno;
diff --git a/src/sesh.c b/src/sesh.c
index b9cfd76c6..023f4d6db 100644
--- a/src/sesh.c
+++ b/src/sesh.c
@@ -46,7 +46,7 @@ int
 main(int argc, char *argv[], char *envp[])
 {
     char *cp, *cmnd;
-    int noexec = 0;
+    bool noexec = false;
     debug_decl(main, SUDO_DEBUG_MAIN)
 
     setlocale(LC_ALL, "");
diff --git a/src/sudo_exec.h b/src/sudo_exec.h
index 4fbb77acf..9be208e36 100644
--- a/src/sudo_exec.h
+++ b/src/sudo_exec.h
@@ -53,7 +53,7 @@
 
 /* exec.c */
 struct sudo_event_base;
-int sudo_execve(const char *path, char *const argv[], char *const envp[], int noexec);
+int sudo_execve(const char *path, char *const argv[], char *const envp[], bool noexec);
 extern volatile pid_t cmnd_pid;
 
 /* exec_pty.c */