diff --git a/src/libosmo-mgcp/Makefile.am b/src/libosmo-mgcp/Makefile.am
index a9e1b6c..fce0e1b 100644
--- a/src/libosmo-mgcp/Makefile.am
+++ b/src/libosmo-mgcp/Makefile.am
@@ -21,7 +21,7 @@
 
 # This is not at all related to the release version, but a range of supported
 # API versions. Read TODO_RELEASE in the source tree's root!
-MGCP_LIBVERSION=0:0:0
+MGCP_LIBVERSION=1:0:0
 
 lib_LTLIBRARIES = \
 	libosmo-mgcp.la \