diff --git a/mozilla/config/mkdetect/detect_motif.sh b/mozilla/config/mkdetect/detect_motif.sh
index 709db0175ac..ee6474efda1 100755
--- a/mozilla/config/mkdetect/detect_motif.sh
+++ b/mozilla/config/mkdetect/detect_motif.sh
@@ -121,6 +121,7 @@ DEFAULT_MOTIF_LIB_SEARCH_PATH="\
 /usr/X/lib \
 /usr/lib \
 /usr/lib/Motif1.2 \
+/usr/lib/Motif1.2_R6 \
 "
 
 ##