diff --git a/include/hyprutils/os/Process.hpp b/include/hyprutils/os/Process.hpp
index 71cc743..115fa66 100644
--- a/include/hyprutils/os/Process.hpp
+++ b/include/hyprutils/os/Process.hpp
@@ -2,6 +2,7 @@
 
 #include <string>
 #include <vector>
+#include <utility>
 
 namespace Hyprutils {
     namespace OS {
@@ -10,6 +11,8 @@ namespace Hyprutils {
             /* Creates a process object, doesn't run yet */
             CProcess(const std::string& binary_, const std::vector<std::string>& args_);
 
+            void addEnv(const std::string& name, const std::string& value);
+
             /* Run the process, synchronously, get the stdout and stderr. False on fail */
             bool runSync();
 
@@ -21,8 +24,9 @@ namespace Hyprutils {
             const std::string& stdErr();
 
           private:
-            std::string              binary, out, err;
-            std::vector<std::string> args;
+            std::string                                      binary, out, err;
+            std::vector<std::string>                         args;
+            std::vector<std::pair<std::string, std::string>> env;
         };
     }
 }
\ No newline at end of file
diff --git a/src/os/Process.cpp b/src/os/Process.cpp
index e415129..2aab580 100644
--- a/src/os/Process.cpp
+++ b/src/os/Process.cpp
@@ -16,6 +16,10 @@ Hyprutils::OS::CProcess::CProcess(const std::string& binary_, const std::vector<
     ;
 }
 
+void Hyprutils::OS::CProcess::addEnv(const std::string& name, const std::string& value) {
+    env.emplace_back(std::make_pair<>(name, value));
+}
+
 bool Hyprutils::OS::CProcess::runSync() {
     int outPipe[2], errPipe[2];
     if (pipe(outPipe))
@@ -53,6 +57,11 @@ bool Hyprutils::OS::CProcess::runSync() {
 
         argsC.emplace_back(nullptr);
 
+        // pass env
+        for (auto& [n, v] : env) {
+            setenv(n.c_str(), v.c_str(), 1);
+        }
+
         execvp(binary.c_str(), (char* const*)argsC.data());
         exit(1);
     } else {
diff --git a/tests/os.cpp b/tests/os.cpp
index 7a932ce..1e6159b 100644
--- a/tests/os.cpp
+++ b/tests/os.cpp
@@ -6,7 +6,8 @@ using namespace Hyprutils::OS;
 int main(int argc, char** argv, char** envp) {
     int ret = 0;
 
-    CProcess process("echo", {"Hello World!"});
+    CProcess process("sh", {"-c", "echo \"Hello $WORLD!\""});
+    process.addEnv("WORLD", "World");
 
     EXPECT(process.runAsync(), true);
     EXPECT(process.runSync(), true);