diff --git a/lib/checkunusedfunctions.cpp b/lib/checkunusedfunctions.cpp
index 7edaff6c241..8f9e0b50aed 100644
--- a/lib/checkunusedfunctions.cpp
+++ b/lib/checkunusedfunctions.cpp
@@ -378,6 +378,8 @@ bool CheckUnusedFunctions::check(const Settings& settings, ErrorLogger& errorLog
             continue;
         if (settings.library.isentrypoint(it->first))
             continue;
+        if (settings.library.ignorefunction(it->first))
+            continue;
         if (!func.usedSameFile) {
             if (isOperatorFunction(it->first))
                 continue;
@@ -490,6 +492,9 @@ void CheckUnusedFunctions::analyseWholeProgram(const Settings &settings, ErrorLo
         if (settings.library.isentrypoint(functionName))
             continue;
 
+        if (settings.library.ignorefunction(functionName))
+            continue;
+
         if (calls.find(functionName) == calls.end() && !isOperatorFunction(functionName)) {
             const Location &loc = decl->second;
             unusedFunctionError(errorLogger, loc.fileName, /*fileIndex*/ 0, loc.lineNumber, loc.column, functionName);