diff --git a/pcsx2/GS/Renderers/Metal/tfx.metal b/pcsx2/GS/Renderers/Metal/tfx.metal
index 0d676a0435..5cccebefb7 100644
--- a/pcsx2/GS/Renderers/Metal/tfx.metal
+++ b/pcsx2/GS/Renderers/Metal/tfx.metal
@@ -610,10 +610,11 @@ struct PSMain
 			t = fetch_c(uv) * 255.f;
 		}
 
+		// macOS 10.15 ICE's on bool3(t.rgb), so use != 0 instead
 		if (PS_AEM_FMT == FMT_24)
-			t.a = (!PS_AEM || any(bool3(t.rgb))) ? 255.f * cb.ta.x : 0.f;
+			t.a = (!PS_AEM || any(t.rgb != 0)) ? 255.f * cb.ta.x : 0.f;
 		else if (PS_AEM_FMT == FMT_16)
-			t.a = t.a >= 128.f ? 255.f * cb.ta.y : (!PS_AEM || any(bool3(t.rgb))) ? 255.f * cb.ta.x : 0.f;
+			t.a = t.a >= 128.f ? 255.f * cb.ta.y : (!PS_AEM || any(t.rgb != 0)) ? 255.f * cb.ta.x : 0.f;
 
 		return t;
 	}
@@ -708,10 +709,11 @@ struct PSMain
 
 		for (int i = 0; i < 4; i++)
 		{
+			// macOS 10.15 ICE's on bool3(c[i].rgb), so use != 0 instead
 			if (PS_AEM_FMT == FMT_24)
-				c[i].a = !PS_AEM || any(bool3(c[i].rgb)) ? cb.ta.x : 0.f;
+				c[i].a = !PS_AEM || any(c[i].rgb != 0) ? cb.ta.x : 0.f;
 			else if (PS_AEM_FMT == FMT_16)
-				c[i].a = c[i].a >= 0.5 ? cb.ta.y : !PS_AEM || any(bool3(c[i].rgb)) ? cb.ta.x : 0.f;
+				c[i].a = c[i].a >= 0.5 ? cb.ta.y : !PS_AEM || any(c[i].rgb != 0) ? cb.ta.x : 0.f;
 		}
 
 		if (PS_LTF)