diff --git a/src/tools/jam/Makefile b/src/tools/jam/Makefile
index ec8b3caf8a..0a66be2fe6 100644
--- a/src/tools/jam/Makefile
+++ b/src/tools/jam/Makefile
@@ -65,7 +65,7 @@ SOURCES = \
 	rules.c scan.c search.c timestamp.c variable.c
 
 all: jam0
-	jam0
+	./jam0
 
 jam0:
 	$(CC) $(TARGET) $(CFLAGS) $(SOURCES) $(LINKLIBS)