diff --git a/include/image.mk b/include/image.mk
index 300f7a661..18ad10cfe 100644
--- a/include/image.mk
+++ b/include/image.mk
@@ -238,7 +238,7 @@ define Image/mkfs/squashfs
 	$(STAGING_DIR_HOST)/bin/mksquashfs4 $(call mkfs_target_dir,$(1)) $@ \
 		-nopad -noappend -root-owned \
 		-comp $(SQUASHFSCOMP) $(SQUASHFSOPT) \
-		-processors 1
+		-processors $(shell nproc)
 endef
 
 # $(1): board name