diff --git a/intl/unicharutil/tests/Makefile.in b/intl/unicharutil/tests/Makefile.in
index 1509b86abec5..c688f60022ed 100644
--- a/intl/unicharutil/tests/Makefile.in
+++ b/intl/unicharutil/tests/Makefile.in
@@ -30,7 +30,6 @@ INCLUDES	+= -I$(srcdir)/../public -I$(DIST)/include
 
 LIBS	= \
 	-lxpcom \
-	-lreg \
 	$(NSPR_LIBS) \
 	$(NULL)
 
diff --git a/js/src/xpconnect/tests/Makefile.in b/js/src/xpconnect/tests/Makefile.in
index 9f02978086e6..136ce771ef51 100644
--- a/js/src/xpconnect/tests/Makefile.in
+++ b/js/src/xpconnect/tests/Makefile.in
@@ -40,7 +40,6 @@ LIBS		= 		\
 	-L$(DIST)/bin \
 	-l$(MOZ_LIB_JS_PREFIX)js \
 	-lxpcom       \
-	-lreg       \
 	-l$(MOZ_LIB_UTIL_PREFIX)util    \
 	$(NSPR_LIBS) 	\
 	$(NULL)