diff --git a/src/cpp/core/r_util/REnvironmentPosix.cpp b/src/cpp/core/r_util/REnvironmentPosix.cpp
index dbc9a9a1..9a526a86 100644
--- a/src/cpp/core/r_util/REnvironmentPosix.cpp
+++ b/src/cpp/core/r_util/REnvironmentPosix.cpp
@@ -107,12 +107,9 @@ FilePath systemDefaultRScript(std::string* pErrMsg)
 {
    // check fallback paths
    std::vector<std::string> rScriptPaths = {
-      "/usr/bin/R",
-      "/usr/local/bin/R",
-      "/opt/local/bin/R",
+      "@R@/bin/R"
    #ifdef __APPLE__
-      "/opt/homebrew/bin/R",
-      "/Library/Frameworks/R.framework/Resources/bin/R",
+      "@R@/bin/R",
    #endif
    };
 
@@ -225,8 +222,7 @@ FilePath systemDefaultRScript(std::string* pErrMsg)
       // scan in standard locations as a fallback
       std::string scanErrMsg;
       std::vector<std::string> rScriptPaths;
-      rScriptPaths.push_back("/usr/local/bin/R");
-      rScriptPaths.push_back("/usr/bin/R");
+      rScriptPaths.push_back("@R@/bin/R");
       FilePath scriptPath = scanForRScript(rScriptPaths, &scanErrMsg);
       if (scriptPath.isEmpty())
       {