diff --git a/lib/suppressions.cpp b/lib/suppressions.cpp
index 985b69acc..007abd6ff 100644
--- a/lib/suppressions.cpp
+++ b/lib/suppressions.cpp
@@ -176,7 +176,7 @@ std::string Suppressions::addSuppression(const Suppressions::Suppression &suppre
 
 void Suppressions::ErrorMessage::setFileName(const std::string &s)
 {
-    _fileName = Path::simplifyPath(s);
+    mFileName = Path::simplifyPath(s);
 }
 
 bool Suppressions::Suppression::parseComment(std::string comment, std::string *errorMessage)
diff --git a/lib/suppressions.h b/lib/suppressions.h
index 132de9d6e..623d1ed5b 100644
--- a/lib/suppressions.h
+++ b/lib/suppressions.h
@@ -38,13 +38,13 @@ public:
         std::string errorId;
         void setFileName(const std::string &s);
         const std::string &getFileName() const {
-            return _fileName;
+            return mFileName;
         }
         int lineNumber;
         bool inconclusive;
         std::string symbolNames;
     private:
-        std::string _fileName;
+        std::string mFileName;
     };
 
     struct CPPCHECKLIB Suppression {