diff --git a/make/defs.mk b/make/defs.mk
index 73149126..78f856ca 100644
--- a/make/defs.mk
+++ b/make/defs.mk
@@ -7,10 +7,6 @@ JW_PKG_DEF_MK_INCLUDED       = true
 
 MAKEFLAGS                   += -r
 
-empty                       :=
-space                       := $(empty) $(empty)
-comma                       := ,
-
 include $(JWBDIR)/make/projects.mk
 
 # ----- Executables
diff --git a/make/platform.mk b/make/platform.mk
index 19a07bc8..3a2c9cc8 100644
--- a/make/platform.mk
+++ b/make/platform.mk
@@ -3,6 +3,10 @@
 ifndef PLATFORM_MK_INCLUDED
 PLATFORM_MK_INCLUDED         = true
 
+empty                       :=
+space                       := $(empty) $(empty)
+comma                       := ,
+
 CACHE_PROJECT_MK            ?= $(TOPDIR)/.cache-project.mk
 CACHE_PROJECTS_MK           := $(JWBDIR)/.cache-projects.mk
 JW_PKG_NO_CACHE             ?= false