diff --git a/Code/Tools/ProjectManager/Platform/Mac/ProjectUtils_mac.cpp b/Code/Tools/ProjectManager/Platform/Mac/ProjectUtils_mac.cpp
index 430e8974b7..0c232d44d1 100644
--- a/Code/Tools/ProjectManager/Platform/Mac/ProjectUtils_mac.cpp
+++ b/Code/Tools/ProjectManager/Platform/Mac/ProjectUtils_mac.cpp
@@ -25,7 +25,8 @@ namespace O3DE::ProjectManager
             // Add that path for the command line process so that it will be able to locate
             // a home-brew installed version of CMake
             QString pathEnv = qEnvironmentVariable("PATH");
-            if (!pathEnv.contains("/usr/local/bin"))
+            QStringList pathEnvList = pathEnv.split(":");
+            if (!pathEnvList.contains("/usr/local/bin"))
             {
                 pathEnv += ":/usr/local/bin";
                 qputenv("PATH", pathEnv.toStdString().c_str());
diff --git a/Code/Tools/ProjectManager/Platform/Windows/ProjectUtils_windows.cpp b/Code/Tools/ProjectManager/Platform/Windows/ProjectUtils_windows.cpp
index 365aac7069..92863b955c 100644
--- a/Code/Tools/ProjectManager/Platform/Windows/ProjectUtils_windows.cpp
+++ b/Code/Tools/ProjectManager/Platform/Windows/ProjectUtils_windows.cpp
@@ -37,7 +37,8 @@ namespace O3DE::ProjectManager
             QDir cmakePath(engineInfo.m_path);
             cmakePath.cd("cmake/runtime/bin");
             QString pathEnv = qEnvironmentVariable("Path");
-            if (!pathEnv.contains(cmakePath.path()))
+            QStringList pathEnvList = pathEnv.split(";");
+            if (!pathEnvList.contains(cmakePath.path()))
             {
                 pathEnv += ";" + cmakePath.path();
                 qputenv("Path", pathEnv.toStdString().c_str());