diff --git a/lib/checkinternal.cpp b/lib/checkinternal.cpp
index 05ffe4a95..1bbc75f2d 100644
--- a/lib/checkinternal.cpp
+++ b/lib/checkinternal.cpp
@@ -353,7 +353,7 @@ void CheckInternal::checkStlUsage()
     for (const Scope *scope : symbolDatabase->functionScopes) {
         for (const Token* tok = scope->bodyStart->next(); tok != scope->bodyEnd; tok = tok->next()) {
             if (Token::simpleMatch(tok, ". emplace ("))
-                reportError(tok, Severity::error, "internalStlUsage", "The 'emplace' function shall be avoided for now. 'emplace_back' is fine");
+                reportError(tok, Severity::error, "internalStlUsage", "The 'emplace' function shall be avoided for now. It is not available e.g. in Slackware 14.0. 'emplace_back' is fine.");
             //if (Token::simpleMatch(tok, ". back ( )") && tok->astOperand1() && tok->astOperand1()->valueType() && tok->astOperand1()->valueType()->container && Token::simpleMatch(tok->astOperand1()->valueType()->container, "std :: string"))
             //  reportError(tok, Severity::error, "internalStlUsage", "The 'std::string::back()' function shall be avoided for now.");
         }