diff --git a/sd/Library_sd.mk b/sd/Library_sd.mk
index f74514bb8f1d..21a4ab8e0c73 100644
--- a/sd/Library_sd.mk
+++ b/sd/Library_sd.mk
@@ -95,12 +95,13 @@ $(eval $(call gb_Library_use_libraries,sd,\
 ))
 
 ifeq ($(OS), LINUX)
-ifeq ($(ENABLE_AVAHI),TRUE)
 $(eval $(call gb_Library_use_externals,sd,\
 	boost_headers \
 	libxml2 \
 	dbus \
-	avahi \
+	$(if $(ENABLE_AVAHI), \
+		avahi \
+	) \
 ))
 else
 $(eval $(call gb_Library_use_externals,sd,\
@@ -109,13 +110,6 @@ $(eval $(call gb_Library_use_externals,sd,\
 	dbus \
 ))
 endif
-else
-$(eval $(call gb_Library_use_externals,sd,\
-	boost_headers \
-	libxml2 \
-	dbus \
-))
-endif
 
 ifeq ($(OS),WNT)
 $(eval $(call gb_Library_use_system_win32_libs,sd,\