diff --git a/net/sslh/Makefile b/net/sslh/Makefile
index b59ff5374..f4e71088c 100644
--- a/net/sslh/Makefile
+++ b/net/sslh/Makefile
@@ -38,6 +38,7 @@ define Build/Compile
 	$(MAKE) -C $(PKG_BUILD_DIR) \
 		CC="$(TARGET_CC)" \
 		CFLAGS="$(TARGET_CFLAGS)" \
+		CPPFLAGS="$(TARGET_CPPFLAGS)" \
 		LDFLAGS="$(TARGET_LDFLAGS)" \
 		ENABLE_REGEX=1 \
 		USELIBCONFIG=1 \