diff --git a/guile-readline/LIBGUILEREADLINE-VERSION b/guile-readline/LIBGUILEREADLINE-VERSION
index ecab91095..30d949c3e 100644
--- a/guile-readline/LIBGUILEREADLINE-VERSION
+++ b/guile-readline/LIBGUILEREADLINE-VERSION
@@ -7,7 +7,7 @@
 # source this file from configure.in.  Later we may automate more of
 # this.
 
-LIBGUILEREADLINE_INTERFACE_CURRENT=10
+LIBGUILEREADLINE_INTERFACE_CURRENT=15
 LIBGUILEREADLINE_INTERFACE_REVISION=0
 LIBGUILEREADLINE_INTERFACE_AGE=0
 LIBGUILEREADLINE_INTERFACE="${LIBGUILEREADLINE_INTERFACE_CURRENT}:${LIBGUILEREADLINE_INTERFACE_REVISION}:${LIBGUILEREADLINE_INTERFACE_AGE}"