diff --git a/Makefile.pre.in b/Makefile.pre.in
index 8daad056c6a..ac510be41ba 100644
--- a/Makefile.pre.in
+++ b/Makefile.pre.in
@@ -909,7 +909,7 @@ $(srcdir)/Lib/$(PLATDIR):
 	export PYTHONPATH; PYTHONPATH="`pwd`/Lib"; \
 	export DYLD_FRAMEWORK_PATH; DYLD_FRAMEWORK_PATH="`pwd`"; \
 	export EXE; EXE="$(BUILDEXE)"; \
-	cd $(srcdir)/Lib/$(PLATDIR); ./regen
+	cd $(srcdir)/Lib/$(PLATDIR); $(RUNSHARED) ./regen
 
 # Install the include files
 INCLDIRSTOMAKE=$(INCLUDEDIR) $(CONFINCLUDEDIR) $(INCLUDEPY) $(CONFINCLUDEPY)