diff --git a/Makefile b/Makefile
index e28dbcd9caa4..7923832ce8b1 100644
--- a/Makefile
+++ b/Makefile
@@ -1364,8 +1364,10 @@ all: modules
 
 PHONY += modules
 modules: $(if $(KBUILD_BUILTIN),vmlinux) modules.order modules.builtin
+ifdef CONFIG_TRIM_UNUSED_KSYMS
 	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/adjust_autoksyms.sh \
 	  "$(MAKE) -f $(srctree)/Makefile vmlinux"
+endif
 	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
 	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/modules-check.sh