diff --git a/Makefile b/Makefile
index ac2be0b6572a3a9cd203b5ff5f39c818258c2c75..d5ee3c5dfbb22b95b16d0b83fa8b7c076b828190 100644
--- a/Makefile
+++ b/Makefile
@@ -15,8 +15,8 @@ installphuser:
 	./gradlew -PprobHome=$(PROB_HOME) -PpythonCommand=$(PYTHON) -PkernelspecUserInstall=true installKernelSpec
 
 remove:
-    echo "Deinstalling ProB2 Kernel; you may have to run this twice!
-    jupyter kernelspec remove prob2
+	echo "Deinstalling ProB2 Kernel; you may have to run this twice!
+	jupyter kernelspec remove prob2
 
 console:
 	jupyter console --kernel prob2