diff --git a/src/detection/terminalsize/terminalsize_linux.c b/src/detection/terminalsize/terminalsize_linux.c
index 68a75cbb2..b15939661 100644
--- a/src/detection/terminalsize/terminalsize_linux.c
+++ b/src/detection/terminalsize/terminalsize_linux.c
@@ -10,10 +10,10 @@ bool ffDetectTerminalSize(FFTerminalSizeResult* result)
     ioctl(STDOUT_FILENO, TIOCGWINSZ, &winsize);
 
     if (winsize.ws_row == 0 || winsize.ws_col == 0)
-        ffGetTerminalResponse("\033[18t", "\033[8;%hu;%hut", &winsize.ws_row, &winsize.ws_col);
+        ffGetTerminalResponse("\e[18t", "\e[8;%hu;%hut", &winsize.ws_row, &winsize.ws_col);
 
     if (winsize.ws_ypixel == 0 || winsize.ws_xpixel == 0)
-        ffGetTerminalResponse("\033[14t", "\033[4;%hu;%hut", &winsize.ws_ypixel, &winsize.ws_xpixel);
+        ffGetTerminalResponse("\e[14t", "\e[4;%hu;%hut", &winsize.ws_ypixel, &winsize.ws_xpixel);
 
     if (winsize.ws_row == 0 && winsize.ws_col == 0)
         return false;
diff --git a/src/detection/terminalsize/terminalsize_windows.c b/src/detection/terminalsize/terminalsize_windows.c
index a0b554517..4d2f6c83d 100644
--- a/src/detection/terminalsize/terminalsize_windows.c
+++ b/src/detection/terminalsize/terminalsize_windows.c
@@ -14,7 +14,7 @@ bool ffDetectTerminalSize(FFTerminalSizeResult* result)
         }
         else
         {
-            ffGetTerminalResponse("\033[18t", "\033[8;%hu;%hut", &result->rows, &result->columns);
+            ffGetTerminalResponse("\e[18t", "\e[8;%hu;%hut", &result->rows, &result->columns);
         }
     }