diff --git a/prism/src/param/Makefile b/prism/src/param/Makefile
index 0aed1810..a12b5ee7 100644
--- a/prism/src/param/Makefile
+++ b/prism/src/param/Makefile
@@ -11,6 +11,7 @@ THIS_DIR = param
 PRISM_DIR_REL = ../..
 
 JAVA_FILES = $(wildcard *.java)
+JAVA_FILES = $(subst package-info.java,,$(JAVA_FILES_ALL))
 CLASS_FILES = $(JAVA_FILES:%.java=$(PRISM_DIR_REL)/$(CLASSES_DIR)/$(THIS_DIR)/%.class)
 
 #PRISM_CLASSPATH = "$(THIS_DIR)/$(PRISM_DIR_REL)/lib/commons-math3-3.0.jar:$(THIS_DIR)/$(PRISM_DIR_REL)/lib/blas.jar:$(THIS_DIR)/$(PRISM_DIR_REL)/lib/lapack.jar:$(THIS_DIR)/$(PRISM_DIR_REL)/lib/xerbla.jar:$(THIS_DIR)/$(PRISM_DIR_REL)/lib/f2jutil.jar"