--- gmime.pc.in.orig	2016-12-09 15:08:58 UTC
+++ gmime.pc.in
@@ -7,7 +7,7 @@ includedir=@includedir@
 Name: GMime
 Version: @VERSION@
 Description: MIME parser and utility library
-Requires: glib-2.0,gio-2.0,gobject-2.0
+Requires: glib-2.0,gio-2.0,gobject-2.0,gthread-2.0
 Libs: -L${libdir} @GMIME_LIBS@
 Libs.private: @GMIME_LIBS_PRIVATE@
 Cflags: -I${includedir}/gmime-@GMIME_API_VERSION@ @GMIME_CFLAGS@