diff --git a/configure.ac b/configure.ac
index 5db75ad1..1f91af3b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -923,7 +923,7 @@ AH_BOTTOM([
 #endif
 
 /* Under Windows we use the gettext code from gpgrt.  */
-#define GPG_ERR_ENABLE_GETTEXT_MACROS
+#define GPG_ERR_ENABLE_GETTEXT_MACROS 1
 
 /* Under WindowsCE we need gpg-error's strerror macro.  */
 #define GPG_ERR_ENABLE_ERRNO_MACROS 1