diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 16fe53dad..3e9d0b4b4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,4 +18,4 @@ jobs:
     - name: Install dependencies
       run: sudo apt-get update && sudo apt-get install -y libsdl2-dev
     - name: make
-      run: make
+      run: make -j$(nproc)
diff --git a/build/Makefile.quaesar b/build/Makefile.quaesar
index c7b0bfeb6..947e1300a 100644
--- a/build/Makefile.quaesar
+++ b/build/Makefile.quaesar
@@ -131,4 +131,4 @@ CPPFLAGS += -DFILEFLAG_DIR=1 -D_ftelli64=ftello64 -D_fseeki64=fseeko64
 
 EXTS = sdl2 libpng
 CPPFLAGS += $(foreach ext,$(EXTS), $(shell pkg-config --cflags $(ext)))
-LDLIBS   += $(foreach ext,$(EXTS), $(shell pkg-config --libs   $(ext))) -lz
+LDLIBS   += $(foreach ext,$(EXTS), $(shell pkg-config --libs   $(ext))) -lz -ldl