diff --git a/packages/core/types/stitches.d.ts b/packages/core/types/stitches.d.ts
index d9c1bb20..e20cd1c2 100644
--- a/packages/core/types/stitches.d.ts
+++ b/packages/core/types/stitches.d.ts
@@ -98,11 +98,9 @@ export default interface Stitches<
 				selector: string
 			}
 			& (
-				Argument0 extends {}
-					? ThemeTokens<Argument0, Prefix>
-				: Argument1 extends {}
+				Argument0 extends string
 					? ThemeTokens<Argument1, Prefix>
-				: {}
+					: ThemeTokens<Argument0, Prefix>
 			)
 	}
 	theme: string & {
diff --git a/packages/react/types/stitches.d.ts b/packages/react/types/stitches.d.ts
index 99dbf4ed..fec34410 100644
--- a/packages/react/types/stitches.d.ts
+++ b/packages/react/types/stitches.d.ts
@@ -98,11 +98,9 @@ export default interface Stitches<
 				selector: string
 			}
 			& (
-				Argument0 extends {}
-					? ThemeTokens<Argument0, Prefix>
-				: Argument1 extends {}
+				Argument0 extends string
 					? ThemeTokens<Argument1, Prefix>
-				: {}
+					: ThemeTokens<Argument0, Prefix>
 			)
 	}
 	theme: string & {