diff --git a/mozilla/nsprpub/config/nspr-config.in b/mozilla/nsprpub/config/nspr-config.in
index e9e18679198..b15c2bcb050 100755
--- a/mozilla/nsprpub/config/nspr-config.in
+++ b/mozilla/nsprpub/config/nspr-config.in
@@ -3,6 +3,7 @@
 prefix=@prefix@
 exec_prefix=@exec_prefix@
 exec_prefix_set=no
+libdir=@libdir@
 
 major_version=@MOD_MAJOR_VERSION@
 minor_version=@MOD_MINOR_VERSION@
@@ -95,7 +96,7 @@ if test "$echo_cflags" = "yes"; then
 fi
 
 if test "$echo_libs" = "yes"; then
-      libdirs=-L${exec_prefix}/lib
+      libdirs=-L${libdir}
       if test -n "$lib_plds"; then
 	libdirs="$libdirs -lplds${major_version}"
       fi