Index: Jenkinsfile
===================================================================
--- Jenkinsfile	(revision 0b4ddb71468426d7a35ad9f5266be9c3c90fe6d2)
+++ Jenkinsfile	(revision bdfd0bd36d538bc1d3a1fb51f9d02c109bbde8e8)
@@ -126,5 +126,5 @@
 		// Build outside of the src tree to ease cleaning
 		dir (BuildDir) {
-			sh "make -j $(nproc) --no-print-directory -C libcfa/${Settings.Architecture.name}-debug"
+			sh "make -j \$(nproc) --no-print-directory -C libcfa/${Settings.Architecture.name}-debug"
 		}
 	}
@@ -133,5 +133,5 @@
 		// Build outside of the src tree to ease cleaning
 		dir (BuildDir) {
-			sh "make -j $(nproc) --no-print-directory -C libcfa/${Settings.Architecture.name}-nodebug"
+			sh "make -j \$(nproc) --no-print-directory -C libcfa/${Settings.Architecture.name}-nodebug"
 		}
 	}
@@ -140,5 +140,5 @@
 		// Build outside of the src tree to ease cleaning
 		dir (BuildDir) {
-			sh "make -j $(nproc) --no-print-directory install"
+			sh 'make -j $(nproc) --no-print-directory install'
 		}
 	}
@@ -161,7 +161,7 @@
 		Tools.BuildStage('Test: full', Settings.RunAllTests) {
 			dir (BuildDir) {
-					jopt = "-j $(nproc)"
+					jopt = '-j $(nproc)'
 					if( Settings.Architecture.node == 'x86' ) {
-						jopt = "-j2"
+						jopt = '-j2'
 					}
 					//Run the tests from the tests directory