diff --git a/src/SFML/Window/DRM/InputImplUDev.cpp b/src/SFML/Window/DRM/InputImplUDev.cpp
index 242a7d2e9..a45b836ee 100644
--- a/src/SFML/Window/DRM/InputImplUDev.cpp
+++ b/src/SFML/Window/DRM/InputImplUDev.cpp
@@ -412,7 +412,7 @@ namespace
                             event.key.shift = shiftDown();
                             event.key.system = systemDown();
 
-                            keyMap[kb] = inputEvent.value;
+                            keyMap[static_cast<std::size_t>(kb)] = inputEvent.value;
 
                             if (special && inputEvent.value)
                                 doDeferredText = special;
@@ -493,7 +493,7 @@ namespace
         //
         // We only clear the ICANON flag for the time of reading
 
-        newTerminalConfig.c_lflag &= ~(tcflag_t)ICANON;
+        newTerminalConfig.c_lflag &= ~static_cast<tcflag_t>(ICANON);
         tcsetattr(STDIN_FILENO, TCSANOW, &newTerminalConfig);
 
         timeval timeout;
@@ -564,7 +564,7 @@ bool InputImpl::isKeyPressed(Keyboard::Key key)
         return false;
 
     update();
-    return keyMap[key];
+    return keyMap[static_cast<std::size_t>(key)];
 }
 
 
@@ -692,8 +692,8 @@ void InputImpl::setTerminalConfig()
 
     tcgetattr(STDIN_FILENO, &newTerminalConfig);          // get current terminal config
     oldTerminalConfig = newTerminalConfig;                // create a backup
-    newTerminalConfig.c_lflag &= ~(tcflag_t)ECHO;         // disable console feedback
-    newTerminalConfig.c_lflag &= ~(tcflag_t)ISIG;         // disable signals
+    newTerminalConfig.c_lflag &= ~static_cast<tcflag_t>(ECHO);         // disable console feedback
+    newTerminalConfig.c_lflag &= ~static_cast<tcflag_t>(ISIG);         // disable signals
     newTerminalConfig.c_lflag |= ICANON;                  // disable noncanonical mode
     newTerminalConfig.c_iflag |= IGNCR;                   // ignore carriage return
     tcsetattr(STDIN_FILENO, TCSANOW, &newTerminalConfig); // set our new config