diff --git a/src/tools/jam/Jambase b/src/tools/jam/Jambase
index 1ed3bf4e90..347697d45d 100644
--- a/src/tools/jam/Jambase
+++ b/src/tools/jam/Jambase
@@ -1869,7 +1869,7 @@ actions Link bind NEEDLIBS
 
 actions MkDir1
 {
-	$(MKDIR) $(<)
+	$(MKDIR) "$(<)"
 }
 
 actions together Ranlib
diff --git a/src/tools/jam/jambase.c b/src/tools/jam/jambase.c
index a2921e77f2..fcc8de0e75 100644
--- a/src/tools/jam/jambase.c
+++ b/src/tools/jam/jambase.c
@@ -1075,7 +1075,7 @@ const char *jambase[] = {
 "}\n",
 "actions MkDir1\n",
 "{\n",
-"$(MKDIR) $(<)\n",
+"$(MKDIR) \"$(<)\"\n",
 "}\n",
 "actions together Ranlib\n",
 "{\n",