diff --git a/ChangeLog b/ChangeLog
index 0087e20bc..57d5d2160 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2013-02-28 Stéphane Voltz <stef.dev@free.fr>
+	* configure.in configure: restored HAVE_USBCALLS like initially
+	committed for OS/2 support
+
 2013-03-04 Oliver Schwartz <oliverschwartz@users.sf.net>
 	* backend/snapscan-options.c backend/snapscan-scsi.c backend/snapscan.c
 	  backend/snapscan-sources.c backend/snapscan.h 
diff --git a/configure b/configure
index a721832ce..69ec32908 100755
--- a/configure
+++ b/configure
@@ -9851,7 +9851,7 @@ if test "$HAVE_USB" = "yes"; then
   case ${host_os} in
   os2*)
 
-$as_echo "#define HAVE_USBCALL 1" >>confdefs.h
+$as_echo "#define HAVE_USBCALLS 1" >>confdefs.h
 
   ;;
   *)
diff --git a/configure.in b/configure.in
index e8f3fa9d3..90fc7c9f8 100644
--- a/configure.in
+++ b/configure.in
@@ -418,7 +418,7 @@ fi
 if test "$HAVE_USB" = "yes"; then
   case ${host_os} in
   os2*)
-  AC_DEFINE(HAVE_USBCALL, 1, [Define to 1 if you have usbcall.dll.])
+  AC_DEFINE(HAVE_USBCALLS, 1, [Define to 1 if you have usbcall.dll.])
   ;;
   *)
   if test "$have_libusb_1_0" = "yes"; then
diff --git a/include/sane/config.h.in b/include/sane/config.h.in
index 23dde638c..c62938b3c 100644
--- a/include/sane/config.h.in
+++ b/include/sane/config.h.in
@@ -421,7 +421,7 @@
 #undef HAVE_UNISTD_H
 
 /* Define to 1 if you have usbcall.dll. */
-#undef HAVE_USBCALL
+#undef HAVE_USBCALLS
 
 /* Define to 1 if you have the `usleep' function. */
 #undef HAVE_USLEEP