diff --git a/.azure-pipelines.yml b/.azure-pipelines.yml
index f200b40..c932c2b 100644
--- a/.azure-pipelines.yml
+++ b/.azure-pipelines.yml
@@ -553,7 +553,7 @@
           cat << "EOF" >> build.sh
           if [[ "${BUILDMAN}" != "" ]]; then
               ret=0;
-              tools/buildman/buildman -o /tmp -P -E -W ${BUILDMAN} ${OVERRIDE} || ret=$?;
+              tools/buildman/buildman -o /tmp -P -E -W --allow-missing-binaries ${BUILDMAN} ${OVERRIDE} || ret=$?;
               if [[ $ret -ne 0 ]]; then
                   tools/buildman/buildman -o /tmp -seP ${BUILDMAN};
                   exit $ret;
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 7052a60..d9fb651 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -81,7 +81,7 @@
   stage: world build
   script:
     - ret=0;
-      ./tools/buildman/buildman -o /tmp -P -E -W arm -x aarch64 || ret=$?;
+      ./tools/buildman/buildman -o /tmp -P -E -W --allow-missing-binaries arm -x aarch64 || ret=$?;
       if [[ $ret -ne 0 ]]; then
         ./tools/buildman/buildman -o /tmp -seP;
         exit $ret;
@@ -94,7 +94,7 @@
     - . /tmp/venv/bin/activate
     - pip install pyelftools
     - ret=0;
-      ./tools/buildman/buildman -o /tmp -P -E -W aarch64 || ret=$?;
+      ./tools/buildman/buildman -o /tmp -P -E -W --allow-missing-binaries aarch64 || ret=$?;
       if [[ $ret -ne 0 ]]; then
         ./tools/buildman/buildman -o /tmp -seP;
         exit $ret;
@@ -114,7 +114,7 @@
   stage: world build
   script:
     - ret=0;
-      ./tools/buildman/buildman -o /tmp -P -E -W -x arm,powerpc || ret=$?;
+      ./tools/buildman/buildman -o /tmp -P -E -W --allow-missing-binaries -x arm,powerpc || ret=$?;
       if [[ $ret -ne 0 ]]; then
         ./tools/buildman/buildman -o /tmp -seP;
         exit $ret;
diff --git a/tools/buildman/builder.py b/tools/buildman/builder.py
index 76252b9..c07e2ca 100644
--- a/tools/buildman/builder.py
+++ b/tools/buildman/builder.py
@@ -252,7 +252,8 @@
                  mrproper=False, per_board_out_dir=False,
                  config_only=False, squash_config_y=False,
                  warnings_as_errors=False, work_in_output=False,
-                 test_thread_exceptions=False, adjust_cfg=None):
+                 test_thread_exceptions=False, adjust_cfg=None,
+                 allow_missing_binaries=False):
         """Create a new Builder object
 
         Args:
@@ -290,6 +291,7 @@
                     ~C to disable C
                     C=val to set the value of C (val must have quotes if C is
                         a string Kconfig
+            allow_missing_binaries: Run build with BINMAN_ALLOW_MISSING=1
 
         """
         self.toolchains = toolchains
@@ -327,6 +329,7 @@
         self.config_filenames = BASE_CONFIG_FILENAMES
         self.work_in_output = work_in_output
         self.adjust_cfg = adjust_cfg
+        self.allow_missing_binaries = allow_missing_binaries
         self._ide = False
 
         if not self.squash_config_y:
diff --git a/tools/buildman/builderthread.py b/tools/buildman/builderthread.py
index 6240e08..722ee17 100644
--- a/tools/buildman/builderthread.py
+++ b/tools/buildman/builderthread.py
@@ -253,6 +253,8 @@
                     args.extend(['-j', str(self.builder.num_jobs)])
                 if self.builder.warnings_as_errors:
                     args.append('KCFLAGS=-Werror')
+                if self.builder.allow_missing_binaries:
+                    args.append('BINMAN_ALLOW_MISSING=1')
                 config_args = ['%s_defconfig' % brd.target]
                 config_out = ''
                 args.extend(self.builder.toolchains.GetMakeArguments(brd))
diff --git a/tools/buildman/cmdline.py b/tools/buildman/cmdline.py
index b29c1eb..18ef190 100644
--- a/tools/buildman/cmdline.py
+++ b/tools/buildman/cmdline.py
@@ -15,6 +15,9 @@
     parser = OptionParser()
     parser.add_option('-a', '--adjust-cfg', type=str, action='append',
           help='Adjust the Kconfig settings in .config before building')
+    parser.add_option('--allow-missing-binaries', action='store_true',
+          default=False, help='Tell binman to allow for external binaries to'
+              ' be missing and generate fake ones as needed'),
     parser.add_option('-A', '--print-prefix', action='store_true',
           help='Print the tool-chain prefix for a board (CROSS_COMPILE=)')
     parser.add_option('-b', '--branch', type='string',
diff --git a/tools/buildman/control.py b/tools/buildman/control.py
index 0c75466..1289dae 100644
--- a/tools/buildman/control.py
+++ b/tools/buildman/control.py
@@ -329,7 +329,8 @@
             warnings_as_errors=options.warnings_as_errors,
             work_in_output=options.work_in_output,
             test_thread_exceptions=test_thread_exceptions,
-            adjust_cfg=adjust_cfg)
+            adjust_cfg=adjust_cfg,
+            allow_missing_binaries=options.allow_missing_binaries)
     builder.force_config_on_failure = not options.quick
     if make_func:
         builder.do_make = make_func