diff --git a/mainTool/CPG.py b/mainTool/CPG.py
index 7b73f15..4f99edc 100644
--- a/mainTool/CPG.py
+++ b/mainTool/CPG.py
@@ -200,12 +200,12 @@ def fileParse(fileName: str, udgConverter: CFGToUDGConverter,
 def initialCalleeInfos(calleeInfs: Dict) -> CalleeInfos:
     calleeInfos: CalleeInfos = CalleeInfos()
 
-    defInfos = calleeInfs["ArgDefs"]
+    defInfos = calleeInfs["ArgDef"]
     for funcName, argNs in defInfos.items():
         for argN in argNs:
             calleeInfos.addArgDef(funcName, argN)
 
-    useInfos = calleeInfs["ArgUses"]
+    useInfos = calleeInfs["ArgUse"]
     for funcName, argNs in useInfos.items():
         for argN in argNs:
             calleeInfos.addArgUse(funcName, argN)
diff --git a/test/extraToolTests/sysevrTest.py b/test/extraToolTests/sysevrTest.py
index b1612e0..4865fb0 100644
--- a/test/extraToolTests/sysevrTest.py
+++ b/test/extraToolTests/sysevrTest.py
@@ -86,7 +86,7 @@ def testGenerateSlices():
     converter: CFGToUDGConverter = CFGToUDGConverter()
     defUseConverter: CFGAndUDGToDefUseCFG = CFGAndUDGToDefUseCFG()
     ddgCreator: DDGCreator = DDGCreator()
-    cpgsCommon: List[CPG] = fileParse(file1, calleeInfos, converter, defUseConverter, ddgCreator) # print et al
+    cpgsCommon: List[CPG] = fileParse(file1, converter, defUseConverter, ddgCreator) # print et al
     for cpg in cpgsCommon:
         cpg.joinSlice = False
         cpg.file = file1
@@ -96,7 +96,7 @@ def testGenerateSlices():
     #     cpg.file = file2
     cpgMainss: List[CPG] = list()
     for testfile in testfiles:
-        cpgMains: List[CPG] = fileParse(testfile, calleeInfos, converter, defUseConverter, ddgCreator)
+        cpgMains: List[CPG] = fileParse(testfile, converter, defUseConverter, ddgCreator)
         for cpg in cpgMains:
             cpg.file = testfile
         cpgMainss.extend(cpgMains)