diff --git a/Libraries/LibHTML/Makefile b/Libraries/LibHTML/Makefile
index a23b602058..5c421edf70 100644
--- a/Libraries/LibHTML/Makefile
+++ b/Libraries/LibHTML/Makefile
@@ -89,9 +89,9 @@ CSS/PropertyID.cpp: CSS/Properties.json $(GENERATE_CSS_PROPERTYID_CPP)
 	@echo "GENERATE $@"
 	$(QUIET) flock CSS $(GENERATE_CSS_PROPERTYID_CPP) $< > $@
 
-ResourceLoader.cpp: ../../Servers/ProtocolServer/ProtocolClientEndpoint.h
-../../Servers/ProtocolServer/ProtocolClientEndpoint.h:
-	@flock ../../Servers/ProtocolServer $(MAKE) -C $(dir $(@))
+ResourceLoader.cpp: ../../Servers/ProtocolServer/ProtocolClientEndpoint.h ../../Servers/ProtocolServer/ProtocolServerEndpoint.h
+../../Servers/ProtocolServer/ProtocolClientEndpoint.h ../../Servers/ProtocolServer/ProtocolServerEndpoint.h:
+	@flock $(dir $(@)) $(MAKE) -C $(dir $(@))
 
 EXTRA_CLEAN = CSS/DefaultStyleSheetSource.cpp CSS/PropertyID.h CSS/PropertyID.cpp
 
diff --git a/Libraries/LibProtocol/Makefile b/Libraries/LibProtocol/Makefile
index 3521c20a00..05714ffb88 100644
--- a/Libraries/LibProtocol/Makefile
+++ b/Libraries/LibProtocol/Makefile
@@ -4,8 +4,8 @@ OBJS = \
 
 LIBRARY = libprotocol.a
 
-Download.cpp: ../../Servers/ProtocolServer/ProtocolClientEndpoint.h
-../../Servers/ProtocolServer/ProtocolClientEndpoint.h:
+Download.cpp Client.cpp: ../../Servers/ProtocolServer/ProtocolClientEndpoint.h ../../Servers/ProtocolServer/ProtocolServerEndpoint.h
+../../Servers/ProtocolServer/ProtocolClientEndpoint.h ../../Servers/ProtocolServer/ProtocolServerEndpoint.h:
 	@flock $(dir $(@)) $(MAKE) -C $(dir $(@))
 
 include ../../Makefile.common