diff --git a/CMakeLists.txt b/CMakeLists.txt
index e75f76832..a057e82ec 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -120,7 +120,7 @@ ENDIF(APPLE)
 
 target_link_libraries(okularcore  ${OKULAR_IOKIT} ${KDE4_KIO_LIBS} ${KDE4_PHONON_LIBRARY} ${KDE4_KJSAPI_LIBRARY} ${MATH_LIB} ${KDE4_THREADWEAVER_LIBRARY} )
 
-set_target_properties(okularcore PROPERTIES VERSION 2.0.0 SOVERSION 1 )
+set_target_properties(okularcore PROPERTIES VERSION 2.0.0 SOVERSION 2 )
 
 install(TARGETS okularcore ${INSTALL_TARGETS_DEFAULT_ARGS} )