diff --git a/libports/ports/ffat.mk b/libports/ports/ffat.mk
index 48631b76b..fccfbce35 100644
--- a/libports/ports/ffat.mk
+++ b/libports/ports/ffat.mk
@@ -41,7 +41,7 @@ $(CONTRIB_DIR)/$(FFAT): $(DOWNLOAD_DIR)/$(FFAT_ZIP) include/ffat
 	$(VERBOSE)for i in $(FFAT_HEADERS); do \
 	  ln -sf ../../$(CONTRIB_DIR)/$(FFAT)/src/$$i include/ffat/; done
 	$(VERBOSE)rm $(addprefix $(CONTRIB_DIR)/$(FFAT)/src/,$(FFAT_DELETE))
-	$(VERBOSE)patch -d $(CONTRIB_DIR)/$(FFAT) -p1 -i ../../src/lib/ffat/config.patch
+	$(VERBOSE)patch -d $(CONTRIB_DIR)/$(FFAT) -p1 -i $(CURDIR)/src/lib/ffat/config.patch
 
 clean-ffat:
 	$(VERBOSE)rm -f  $(addprefix include/ffat/,$(FFAT_HEADERS))
diff --git a/libports/ports/libav.mk b/libports/ports/libav.mk
index 19dd31728..cdc2476e7 100644
--- a/libports/ports/libav.mk
+++ b/libports/ports/libav.mk
@@ -20,7 +20,7 @@ $(DOWNLOAD_DIR)/$(LIBAV_TGZ):
 
 $(CONTRIB_DIR)/$(LIBAV): $(DOWNLOAD_DIR)/$(LIBAV_TGZ)
 	$(VERBOSE)tar xfz $< -C $(CONTRIB_DIR) && touch $@
-	$(VERBOSE)patch -d $(CONTRIB_DIR)/$(LIBAV) -p1 -i ../../src/app/avplay/avplay.patch
+	$(VERBOSE)patch -d $(CONTRIB_DIR)/$(LIBAV) -p1 -i $(CURDIR)/src/app/avplay/avplay.patch
 
 clean-libav:
 	$(VERBOSE)rm -rf $(CONTRIB_DIR)/$(LIBAV)
diff --git a/libports/ports/sdl.mk b/libports/ports/sdl.mk
index ab7df4bf4..dfcebb0f2 100644
--- a/libports/ports/sdl.mk
+++ b/libports/ports/sdl.mk
@@ -25,7 +25,7 @@ $(CONTRIB_DIR)/$(SDL): $(DOWNLOAD_DIR)/$(SDL_TGZ)
 	$(VERBOSE)tar xfz $< -C $(CONTRIB_DIR) && touch $@
 	$(VERBOSE)rm -f $@/include/SDL_config.h
 	$(VERBOSE)patch -p0 -i src/lib/sdl/SDL_video.patch
-	$(VERBOSE)patch -d $(CONTRIB_DIR)/$(SDL) -p1 -i ../../src/lib/sdl/SDL_audio.patch
+	$(VERBOSE)patch -d $(CONTRIB_DIR)/$(SDL) -p1 -i $(CURDIR)/src/lib/sdl/SDL_audio.patch
 
 #
 # Install SDL headers