diff --git a/sys/conf/Makefile.amd64 b/sys/conf/Makefile.amd64
index 33f146e1f1bf..faf01c6fc27e 100644
--- a/sys/conf/Makefile.amd64
+++ b/sys/conf/Makefile.amd64
@@ -31,9 +31,9 @@ S=	../../..
 .endif
 .include "$S/conf/kern.pre.mk"
 
-DDB_ENABLED!=	grep DDB opt_ddb.h || true
-DTR_ENABLED!=	grep KDTRACE_FRAME opt_kdtrace.h || true
-HWPMC_ENABLED!=	grep HWPMC opt_hwpmc_hooks.h || true
+DDB_ENABLED!=	grep DDB opt_ddb.h || true ; echo
+DTR_ENABLED!=	grep KDTRACE_FRAME opt_kdtrace.h || true ; echo
+HWPMC_ENABLED!=	grep HWPMC opt_hwpmc_hooks.h || true ; echo
 .if !empty(DDB_ENABLED) || !empty(DTR_ENABLED) || !empty(HWPMC_ENABLED)
 CFLAGS+=	-fno-omit-frame-pointer
 .endif
diff --git a/sys/conf/Makefile.arm b/sys/conf/Makefile.arm
index 545c6aeab570..13997eaac625 100644
--- a/sys/conf/Makefile.arm
+++ b/sys/conf/Makefile.arm
@@ -39,7 +39,7 @@ SYSTEM_DEP:= ${SYSTEM_DEP:$S/conf/ldscript.$M=ldscript.$M}
 STRIP_FLAGS = -S
 .endif
 
-DDB_ENABLED!=	grep DDB opt_ddb.h || true
+DDB_ENABLED!=	grep DDB opt_ddb.h || true ; echo
 
 .if empty(DDB_ENABLED)
 CFLAGS += -mno-apcs-frame
diff --git a/sys/conf/Makefile.powerpc b/sys/conf/Makefile.powerpc
index 725f3c7056b3..ebd820c371fc 100644
--- a/sys/conf/Makefile.powerpc
+++ b/sys/conf/Makefile.powerpc
@@ -37,7 +37,7 @@ INCLUDES+= -I$S/contrib/libfdt
 
 CFLAGS+= -msoft-float -Wa,-many
 
-DDB_ENABLED!=	grep DDB opt_ddb.h || true
+DDB_ENABLED!=	grep DDB opt_ddb.h || true ; echo
 .if !empty(DDB_ENABLED)
 CFLAGS+=	-fno-omit-frame-pointer
 .endif