diff --git a/lang/python3/files/python3-package.mk b/lang/python3/files/python3-package.mk
index d5028d002..ef5fbd6d7 100644
--- a/lang/python3/files/python3-package.mk
+++ b/lang/python3/files/python3-package.mk
@@ -75,7 +75,7 @@ define Build/Compile/Py3Mod
 		CC="$(TARGET_CC)" \
 		CCSHARED="$(TARGET_CC) $(FPIC)" \
 		CFLAGS="$(TARGET_CFLAGS)" \
-		CPPFLAGS="$(TARGET_CPPFLAGS)" \
+		CPPFLAGS="$(TARGET_CPPFLAGS) -I$(PYTHON3_INC_DIR)" \
 		LDFLAGS="$(TARGET_LDFLAGS)" \
 		$(3) \
 		, \