diff --git a/Makefile b/Makefile
index 153141a541ac065cf581e8affc74c238ade0c016..00210bc3d0fc7157ba5000673522dc2b7e346e5c 100644
--- a/Makefile
+++ b/Makefile
@@ -31,8 +31,8 @@ JAR=SLUBVirusCheckPlugin.jar
 BUILD:=build/
 export CMD=/usr/bin/java -cp $(CLASSPATH):$(JUNITCLASSPATH):$(JAR) org.slub.rosetta.dps.repository.plugin.SLUBVirusCheckClamAVPlugin
 #export CMD=echo SIGNATURE: Eicar-Signature
-CMD_EICAR:=$(shell ${CMD} EICAR/eicar | grep -F 'SIGNATURE:')
-CMD_NOVIRUS:=$(shell ${CMD} Makefile | grep -F 'SIGNATURE:')
+CMD_EICAR=$(shell ${CMD} EICAR/eicar | grep -F 'SIGNATURE:')
+CMD_NOVIRUS=$(shell ${CMD} Makefile | grep -F 'SIGNATURE:')
 
 all: $(BUILD) $(JAR)