diff --git a/lib/Interpreter/CIFactory.cpp b/lib/Interpreter/CIFactory.cpp
index 086866d8..d0563387 100644
--- a/lib/Interpreter/CIFactory.cpp
+++ b/lib/Interpreter/CIFactory.cpp
@@ -172,7 +172,7 @@ namespace cling {
         HeaderSearchOptions::Entry &E = Opts.UserEntries[i];
         if (!E.IsFramework && E.Group == clang::frontend::System
             && E.IgnoreSysRoot && oldResInc.str() == E.Path) {
-          E.Path = newResInc.data();
+          E.Path = newResInc.c_str();
           foundOldResInc = true;
         }
       }
diff --git a/lib/Interpreter/DynamicLibraryManager.cpp b/lib/Interpreter/DynamicLibraryManager.cpp
index 2460c2b6..ce254b25 100644
--- a/lib/Interpreter/DynamicLibraryManager.cpp
+++ b/lib/Interpreter/DynamicLibraryManager.cpp
@@ -172,7 +172,7 @@ namespace cling {
     std::string errMsg;
 #else
     const void* dyLibHandle
-      = dlopen(FoundDyLib.data(), RTLD_LAZY|RTLD_GLOBAL);
+      = dlopen(FoundDyLib.c_str(), RTLD_LAZY|RTLD_GLOBAL);
     std::string errMsg;
     if (const char* DyLibError = dlerror()) {
       errMsg = DyLibError;