diff --git a/datafile.c b/datafile.c

index b6274c0..af42948 100644

--- a/datafile.c

+++ b/datafile.c

@@ -21,7 +21,7 @@

 #include <unistd.h>

 #include <sys/stat.h>

-#define ISC_BUFFER_USEINLINE

+#define ISC_BUFFER_USEINLINE 1

 #include <isc/buffer.h>

 #include <isc/mem.h>

diff --git a/dns.c b/dns.c

index be16490..fb50710 100644

--- a/dns.c

+++ b/dns.c

@@ -38,7 +38,7 @@

 #include <stdio.h>

 #include <string.h>

-#define ISC_BUFFER_USEINLINE

+#define ISC_BUFFER_USEINLINE 1

 #include <isc/base64.h>

 #include <isc/buffer.h>

diff --git a/dnsperf.c b/dnsperf.c

index d4f2b32..c9ec210 100644

--- a/dnsperf.c

+++ b/dnsperf.c

@@ -50,7 +50,7 @@

 #include <sys/time.h>

-#define ISC_BUFFER_USEINLINE

+#define ISC_BUFFER_USEINLINE 1

 #include <isc/buffer.h>

 #include <isc/file.h>