diff --git a/plugins/sudoers/sudoreplay.c b/plugins/sudoers/sudoreplay.c
index b2e856bcb..d82f0f91e 100644
--- a/plugins/sudoers/sudoreplay.c
+++ b/plugins/sudoers/sudoreplay.c
@@ -194,7 +194,7 @@ main(int argc, char *argv[])
 #if defined(SUDO_DEVEL) && defined(__OpenBSD__)
     {
 	extern char *malloc_options;
-	malloc_options = "AFGJPR";
+	malloc_options = "S";
     }  
 #endif
 
diff --git a/plugins/sudoers/testsudoers.c b/plugins/sudoers/testsudoers.c
index 30e092320..67e495905 100644
--- a/plugins/sudoers/testsudoers.c
+++ b/plugins/sudoers/testsudoers.c
@@ -118,7 +118,7 @@ main(int argc, char *argv[])
     debug_decl(main, SUDOERS_DEBUG_MAIN)
 
 #if defined(SUDO_DEVEL) && defined(__OpenBSD__)
-    malloc_options = "AFGJPR";
+    malloc_options = "S";
 #endif
 #if YYDEBUG
     sudoersdebug = 1;
diff --git a/plugins/sudoers/visudo.c b/plugins/sudoers/visudo.c
index a6d429bbd..b2ee89486 100644
--- a/plugins/sudoers/visudo.c
+++ b/plugins/sudoers/visudo.c
@@ -143,7 +143,7 @@ main(int argc, char *argv[])
 #if defined(SUDO_DEVEL) && defined(__OpenBSD__)
     {
 	extern char *malloc_options;
-	malloc_options = "AFGJPR";
+	malloc_options = "S";
     }
 #endif
 
diff --git a/src/openbsd.c b/src/openbsd.c
index 97213fca4..f791c9c5e 100644
--- a/src/openbsd.c
+++ b/src/openbsd.c
@@ -34,7 +34,7 @@ os_init(int argc, char *argv[], char *envp[])
 {
 #ifdef SUDO_DEVEL
     extern char *malloc_options;
-    malloc_options = "AFGJPR";
+    malloc_options = "S";
 #endif
     return os_init_common(argc, argv, envp);
 }