diff --git a/rtgui/options.cc b/rtgui/options.cc
index 93a898987..b09a16ae8 100644
--- a/rtgui/options.cc
+++ b/rtgui/options.cc
@@ -2277,9 +2277,9 @@ void Options::load(bool lightweight)
     int homelength = strlen(homebuf.c_str());
     homebuf[homelength-44] = '\0'; // Truncate path to just ${HOME}/Library
     std::string homeconfig{homebuf};
-    std::strcat(homeconfig, "/Application Support/RawTherapee/config");
+    std::strcat(&homeconfig[0], "/Application Support/RawTherapee/config");
     path = homebuf.c_str();
-    std::cout<<path<<std::endl;
+    std::cout<<"config="<<path<<std::endl;
 #else
     path = g_getenv("RT_SETTINGS");
 #endif
@@ -2328,7 +2328,7 @@ void Options::load(bool lightweight)
     // Modify the path of the cache folder to the one provided in RT_CACHE environment variable. Build the cache folder name in macOS.
 #ifdef __APPLE__
     std::string homecache{homebuf};
-    std::strcat(homecache, "/Application Support/RawTherapee/cache");
+    std::strcat(&homecache[0], "/Application Support/RawTherapee/cache");
     path = homecache.c_str();
     std::cout<<path<<std::endl;
 #else