diff --git a/configure b/configure
index 7ed01c91..4c91c693 100755
--- a/configure
+++ b/configure
@@ -193,6 +193,10 @@ echo "CPPFLAGS = 	-I. -I\$(TOPDIR) -I\$(TOPDIR)/include" >>$CONFIG_MK
 echo "CPPFLAGS +=	-DHAVE_CONFIG_H" >>$CONFIG_MK
 echo "CPPFLAGS +=	-DXBPS_SYSCONF_PATH=\\\"${ETCDIR}\\\"" >>$CONFIG_MK
 echo "CPPFLAGS +=	-DXBPS_VERSION=\\\"${VERSION}\\\"" >>$CONFIG_MK
+if [ -d .git ]; then
+	_gitrev=$(git rev-parse master)
+	echo "CPPFLAGS += -DXBPS_GIT=\\\"${_gitrev}\\\"" >>$CONFIG_MK
+fi
 
 if [ -n "$DEBUG" -a "$DEBUG" != no -a "$DEBUG" != false ]; then
 	echo "Building with debugging symbols."
diff --git a/include/xbps_api.h.in b/include/xbps_api.h.in
index a57de359..b23ad95e 100644
--- a/include/xbps_api.h.in
+++ b/include/xbps_api.h.in
@@ -61,14 +61,17 @@
 #ifndef XBPS_VERSION
  #define XBPS_VERSION		"UNSET"
 #endif
-
+#ifndef XBPS_GIT
+ #define XBPS_GIT		"UNSET"
+#endif
 /**
  * @def XBPS_RELVER
  * Current library release date.
  */
 #define XBPS_RELVER		"XBPS: " XBPS_VERSION \
 				" API: " XBPS_API_VERSION \
-				" INDEX: " XBPS_PKGINDEX_VERSION
+				" INDEX: " XBPS_PKGINDEX_VERSION \
+				" GIT: " XBPS_GIT
 
 /** 
  * @def XBPS_META_PATH