diff --git a/pyuno/zipcore/makefile.mk b/pyuno/zipcore/makefile.mk
index 4a054b9f2ddb..ec9bce0ca94d 100755
--- a/pyuno/zipcore/makefile.mk
+++ b/pyuno/zipcore/makefile.mk
@@ -2,6 +2,12 @@ PRJNAME=pyuno
 PRJ=..
 
 .INCLUDE : settings.mk
+
+.IF "$(SYSTEM_PYTHON)" == "YES"
+systempython:
+        @echo "Not building python-core because system python is being used"
+.ELSE
+
 .INCLUDE : pyversion.mk
 
 PYDIRNAME=python-core-$(PYVERSION)
@@ -51,3 +57,5 @@ $(DESTROOT)$/bin$/python$(EXECPOST) : $(SOLARBINDIR)$/python$(EXECPOST)
 .ENDIF
     chmod +x $@
 .ENDIF
+
+.ENDIF