diff --git a/mesonbuild/modules/pkgconfig.py b/mesonbuild/modules/pkgconfig.py
index fe5ca45dc..6ee558bae 100644
--- a/mesonbuild/modules/pkgconfig.py
+++ b/mesonbuild/modules/pkgconfig.py
@@ -43,6 +43,8 @@ class PkgConfigModule:
             ofile.write('Libraries.private: {}\n'.format(' '.join(priv_libs)))
         ofile.write('Libs: -L${libdir} ')
         for l in libraries:
+            if l.custom_install_dir:
+                ofile.write('-L${prefix}/%s ' % l.custom_install_dir)
             ofile.write('-l%s ' % l.name)
         ofile.write('\n')
         ofile.write('CFlags: ')