diff --git a/tests/Makefile b/tests/Makefile
index 29f2fa1..99c89a3 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -39,11 +39,15 @@
 ifdef SHARED
 SHARED_SUFFIX=.$(DLEXT)
 endif
-PYTHON ?= python
 else
 DLEXT ?= so
 EXEXT=
 SHARED_SUFFIX=
+endif
+
+ifdef WINDOWS
+PYTHON ?= python
+else
 PYTHON ?= $(shell if type python3 >/dev/null 2>/dev/null; then echo python3; else echo python; fi)
 endif