diff --git a/source/client/defs/custom.qc b/source/client/defs/custom.qc
index 592bda3..3932ab9 100644
--- a/source/client/defs/custom.qc
+++ b/source/client/defs/custom.qc
@@ -196,6 +196,8 @@ float screen_height_169[MAX_169];
 float screen_width_219[MAX_219];
 float screen_height_219[MAX_219];
 
+int 	platform_is_web;
+
 //controller buttons
 
 /*
diff --git a/source/client/main.qc b/source/client/main.qc
index 9ad56e8..8c82c27 100644
--- a/source/client/main.qc
+++ b/source/client/main.qc
@@ -70,6 +70,12 @@ noref void(float apiver, string enginename, float enginever) CSQC_Init =
 	registercommand("showscores");
 
 	cvar_set("sv_cheats", ftos(1));
+
+	// Runtime check if we're running this in WebASM/WebGL.
+	if (cvar_string("sys_platform") == "Web")
+		platform_is_web = true;
+	else
+		platform_is_web = false;
 		
 	//print("CSQC Started\n");
 	dummy = spawn();