diff --git a/tools/power/acpi/Makefile b/tools/power/acpi/Makefile
index ebd3e1a1c28edc6beea4e079c4e6838965594c8c..a249c50ebf555df00d41bd1e1907eb6f742ec3fd 100644
--- a/tools/power/acpi/Makefile
+++ b/tools/power/acpi/Makefile
@@ -7,6 +7,8 @@
 
 include ../../scripts/Makefile.include
 
+.NOTPARALLEL:
+
 all: acpidbg acpidump ec
 clean: acpidbg_clean acpidump_clean ec_clean
 install: acpidbg_install acpidump_install ec_install