--- a/services/icecc.pc.in
+++ b/services/icecc.pc.in
@@ -11,4 +11,5 @@ Version: @VERSION@
 Requires:
 Conflicts:
 Libs: -L${libdir} -licecc
+Libs.private: @CAPNG_LDADD@
 Cflags: -I${includedir}