diff --git a/Makefile.pre.in b/Makefile.pre.in
index 4afa5ec09ec..1047f438f51 100644
--- a/Makefile.pre.in
+++ b/Makefile.pre.in
@@ -442,7 +442,7 @@ libpython$(VERSION).sl: $(LIBRARY_OBJS)
 # to the stripped DWARF data for the shared library.
 gdbhooks: $(BUILDPYTHON)-gdb.py
 
-SRC_GDB_HOOKS=Tools/gdb/libpython.py
+SRC_GDB_HOOKS=$(srcdir)/Tools/gdb/libpython.py
 $(BUILDPYTHON)-gdb.py: $(SRC_GDB_HOOKS)
 	$(INSTALL_DATA) $(SRC_GDB_HOOKS) $(BUILDPYTHON)-gdb.py