diff --git a/Makefile b/Makefile
index a8a7a6e0f..cd2690cc7 100644
--- a/Makefile
+++ b/Makefile
@@ -7,11 +7,11 @@ all: spectral FEM processing
 
 .PHONY: spectral
 spectral: build/spectral
-	@(cd build/spectral;make --no-print-directory -ws all install;)
+	@(cd build/spectral;make -j4 --no-print-directory -ws all install;)
 
 .PHONY: FEM
 FEM: build/FEM
-	@(cd build/FEM; make --no-print-directory -ws all install;)
+	@(cd build/FEM; make -j4 --no-print-directory -ws all install;)
 
 .PHONY: build/spectral
 build/spectral: