diff --git a/runtime/compiler/optimizer/InlinerTempForJ9.cpp b/runtime/compiler/optimizer/InlinerTempForJ9.cpp
index dd0b51a641c..57af36ce736 100644
--- a/runtime/compiler/optimizer/InlinerTempForJ9.cpp
+++ b/runtime/compiler/optimizer/InlinerTempForJ9.cpp
@@ -4048,11 +4048,11 @@ TR_MultipleCallTargetInliner::exceedsSizeThreshold(TR_CallSite *callSite, int by
       return false;
 
    TR_J9InlinerPolicy *j9InlinerPolicy = (TR_J9InlinerPolicy *)getPolicy();
-   static char *polymorphicCalleeSizeThresholdStr = feGetEnv("TR_InlinerPolymorphicConservatismCalleeSize");
+   static const char *polymorphicCalleeSizeThresholdStr = feGetEnv("TR_InlinerPolymorphicConservatismCalleeSize");
    int polymorphicCalleeSizeThreshold = polymorphicCalleeSizeThresholdStr ? atoi(polymorphicCalleeSizeThresholdStr) : 10;
-   static char *polymorphicRootSizeThresholdStr = feGetEnv("TR_InlinerPolymorphicConservatismRootSize");
+   static const char *polymorphicRootSizeThresholdStr = feGetEnv("TR_InlinerPolymorphicConservatismRootSize");
    int polymorphicRootSizeThreshold = polymorphicRootSizeThresholdStr ? atoi(polymorphicRootSizeThresholdStr) : 30;
-   static char *trustedInterfacePattern = feGetEnv("TR_TrustedPolymorphicInterfaces");
+   static const char *trustedInterfacePattern = feGetEnv("TR_TrustedPolymorphicInterfaces");
    static TR::SimpleRegex *trustedInterfaceRegex = trustedInterfacePattern ? TR::SimpleRegex::create(trustedInterfacePattern) : NULL;
    // we need to be conservative about inlining potentially highly polymorphic interface calls for
    // functional frameworks like scala - we limit this to hot and above
diff --git a/runtime/compiler/runtime/IProfiler.cpp b/runtime/compiler/runtime/IProfiler.cpp
index c36be3aa4fe..7121d725fc6 100644
--- a/runtime/compiler/runtime/IProfiler.cpp
+++ b/runtime/compiler/runtime/IProfiler.cpp
@@ -134,7 +134,7 @@ void printHashedCallSite ( TR_IPHashedCallSite * hcs, ::FILE* fout = stderr, voi
 
 static bool matchesRegularExpression (TR::Compilation* comp) {
 
-   static char* cRegex = feGetEnv ("TR_printIfRegex");
+   static const char *cRegex = feGetEnv ("TR_printIfRegex");
    if (cRegex && comp->getOptions())
       {
       static TR::SimpleRegex * regex = TR::SimpleRegex::create(cRegex);