diff --git a/pkgconfig/gstreamer-tag-uninstalled.pc.in b/pkgconfig/gstreamer-tag-uninstalled.pc.in
index cb097a13c3..02d3317a46 100644
--- a/pkgconfig/gstreamer-tag-uninstalled.pc.in
+++ b/pkgconfig/gstreamer-tag-uninstalled.pc.in
@@ -12,5 +12,6 @@ Description: Tag base classes and helper functions, uninstalled
 Version: @VERSION@
 Requires: gstreamer-@GST_API_VERSION@
 Libs: -L${libdir} -lgsttag-@GST_API_VERSION@
+Libs.Private: @ZLIB_LIBS@
 Cflags: -I@abs_top_srcdir@/gst-libs -I@abs_top_builddir@/gst-libs
 
diff --git a/pkgconfig/gstreamer-tag.pc.in b/pkgconfig/gstreamer-tag.pc.in
index 43b6063c99..b8d318770b 100644
--- a/pkgconfig/gstreamer-tag.pc.in
+++ b/pkgconfig/gstreamer-tag.pc.in
@@ -12,5 +12,6 @@ Description: Tag base classes and helper functions
 Requires: gstreamer-@GST_API_VERSION@
 Version: @VERSION@
 Libs: -L${libdir} -lgsttag-@GST_API_VERSION@
+Libs.private: @ZLIB_LIBS@
 Cflags: -I${includedir}