diff --git a/usr/include/Makefile b/usr/include/Makefile
index d352280b0e4a..845d06b63c2b 100644
--- a/usr/include/Makefile
+++ b/usr/include/Makefile
@@ -137,14 +137,14 @@ endif
 
 always-y := $(patsubst $(obj)/%.h,%.hdrtest, $(shell find $(obj) -name '*.h' 2>/dev/null))
 
-target-no-libc = $(filter-out $(uses-libc), $*.h)
+target-libc = $(filter $(uses-libc), $*.h)
 target-can-compile = $(filter-out $(no-header-test), $*.h)
 
 # Include the header twice to detect missing include guard.
 quiet_cmd_hdrtest = HDRTEST $<
       cmd_hdrtest = \
 		$(CC) $(c_flags) -fsyntax-only -Werror -x c /dev/null \
-			-nostdinc $(if $(target-no-libc), , -I $(srctree)/usr/dummy-include) \
+			-nostdinc $(if $(target-libc), -I $(srctree)/usr/dummy-include) \
 			$(if $(target-can-compile), -include $< -include $<); \
 		$(PERL) $(src)/headers_check.pl $(obj) $<; \
 		touch $@