diff --git a/historic/jam/src/build.sh b/historic/jam/src/build.sh
index 8396622c3..95d4bb572 100644
--- a/historic/jam/src/build.sh
+++ b/historic/jam/src/build.sh
@@ -12,7 +12,7 @@ BOOST_JAM_TOOLSET=
 echo_run ()
 {
     echo "$@"
-    "$@"
+    $@
     r=$?
     if test $r -ne 0 ; then
         exit $r
diff --git a/jam_src/build.sh b/jam_src/build.sh
index 8396622c3..95d4bb572 100644
--- a/jam_src/build.sh
+++ b/jam_src/build.sh
@@ -12,7 +12,7 @@ BOOST_JAM_TOOLSET=
 echo_run ()
 {
     echo "$@"
-    "$@"
+    $@
     r=$?
     if test $r -ne 0 ; then
         exit $r