diff --git a/BaseBuild/testchain/perl b/BaseBuild/testchain/perl
index acf8642..c5a3d06 100644
--- a/BaseBuild/testchain/perl
+++ b/BaseBuild/testchain/perl
@@ -87,7 +87,7 @@ premk() {
 mk() {
 	./configure.gnu --prefix=/tools -Dcc="gcc -m32"
 	make -j $NUMCPU 
-	make -j $NUMCPU install
+	make install
 	ln -sv /tools/bin/perl /usr/bin
 }
 
diff --git a/BaseBuild/testchain/tcl b/BaseBuild/testchain/tcl
index 6b52658..043a9d8 100644
--- a/BaseBuild/testchain/tcl
+++ b/BaseBuild/testchain/tcl
@@ -88,8 +88,8 @@ mk() {
 	./configure --libdir=/tools/${LIBDIR} \
 	            --prefix=/tools 
 	make -j $NUMCPU 
-	make -j $NUMCPU install  
-	make -j $NUMCPU install install-private-headers 
+	make install  
+	make install install-private-headers 
 	ln -sv tclsh8.5 /tools/bin/tclsh
 }