diff --git a/zdev/src/Makefile b/zdev/src/Makefile
index 19efe019..57e28015 100644
--- a/zdev/src/Makefile
+++ b/zdev/src/Makefile
@@ -86,11 +86,13 @@ endif
 
 CSTR_SED = -e 's/\\/\\\\/g' -e 's/"/\\"/g' -e 's/^/"/g' -e 's/$$/\\n"/g'
 
-%_usage.c: %_usage.txt
-	$(SED) $(CSTR_SED) $< >$@
+%_usage.h: %_usage.txt
+	@echo 'static const char *usage_text =' >$@
+	@$(SED) $(CSTR_SED) $< >>$@
+	@echo ';' >>$@
 
-.chzdev.o.d: chzdev_usage.c
-.lszdev.o.d: lszdev_usage.c
+.chzdev.o.d: chzdev_usage.h
+.lszdev.o.d: lszdev_usage.h
 
 libs =	$(rootdir)/libap/libap.a \
 	$(rootdir)/libutil/libutil.a
@@ -113,6 +115,6 @@ ifeq ($(HAVE_DRACUT),1)
 endif
 
 clean:
-	@rm -f *.o chzdev lszdev chzdev_usage.c lszdev_usage.c gmon.out *.gcda *.gcno zdev_id
+	@rm -f *.o chzdev lszdev chzdev_usage.h lszdev_usage.h gmon.out *.gcda *.gcno zdev_id
 
 .PHONY: all install clean
diff --git a/zdev/src/chzdev.c b/zdev/src/chzdev.c
index 294b126a..2c974720 100644
--- a/zdev/src/chzdev.c
+++ b/zdev/src/chzdev.c
@@ -111,10 +111,8 @@ struct options {
 	unsigned int no_module_load:1;
 };
 
-/* Makefile converts chzdev_usage.txt into C file which we include here. */
-static const char *usage_text =
-#include "chzdev_usage.c"
-	;
+/* Makefile converts chzdev_usage.txt into header file which we include here. */
+#include "chzdev_usage.h"
 
 #define OPT_ANONYMOUS_BASE	0x80
 enum {
diff --git a/zdev/src/lszdev.c b/zdev/src/lszdev.c
index 02a98e95..63567493 100644
--- a/zdev/src/lszdev.c
+++ b/zdev/src/lszdev.c
@@ -76,10 +76,8 @@ struct options {
 	unsigned int site_id;
 };
 
-/* Makefile converts lszdev_usage.txt into C file which we include here. */
-static const char *usage_text =
-#include "lszdev_usage.c"
-	;
+/* Makefile converts lszdev_usage.txt into header file which we include here. */
+#include "lszdev_usage.h"
 
 #define OPT_ANONYMOUS_BASE	0x80
 enum {