diff --git a/src/detection/displayserver/displayserver.h b/src/detection/displayserver/displayserver.h
index dd4fd9651..44f23fa68 100644
--- a/src/detection/displayserver/displayserver.h
+++ b/src/detection/displayserver/displayserver.h
@@ -36,6 +36,8 @@
 #define FF_WM_PRETTY_ICEWM "IceWM"
 #define FF_WM_PRETTY_SPECTRWM "spectrwm"
 #define FF_WM_PRETTY_DTWM "dtwm"
+#define FF_WM_PRETTY_FVWM "fvwm"
+#define FF_WM_PRETTY_CTWM "ctwm"
 
 
 #define FF_WM_PROTOCOL_TTY "TTY"
diff --git a/src/detection/displayserver/linux/wmde.c b/src/detection/displayserver/linux/wmde.c
index 7a8554caa..c5a22f3ba 100644
--- a/src/detection/displayserver/linux/wmde.c
+++ b/src/detection/displayserver/linux/wmde.c
@@ -126,6 +126,10 @@ static void applyPrettyNameIfWM(FFDisplayServerResult* result, const char* name)
         ffStrbufSetS(&result->wmPrettyName, FF_WM_PRETTY_ICEWM);
     else if(ffStrEqualsIgnCase(name, "dtwm"))
         ffStrbufSetS(&result->wmPrettyName, FF_WM_PRETTY_DTWM);
+    else if(ffStrEqualsIgnCase(name, "fvwm"))
+        ffStrbufSetS(&result->wmPrettyName, FF_WM_PRETTY_FVWM);
+    else if(ffStrEqualsIgnCase(name, "ctwm"))
+        ffStrbufSetS(&result->wmPrettyName, FF_WM_PRETTY_CTWM);
     else if(ffStrEqualsIgnCase(name, "hyprland"))
         ffStrbufSetS(&result->wmPrettyName, FF_WM_PRETTY_HYPRLAND);
 }