diff --git a/src/source.luau b/src/source.luau
index 87b144e..f1307fc 100644
--- a/src/source.luau
+++ b/src/source.luau
@@ -9,10 +9,6 @@ local update = graph.update
 export type Source<T> = (() -> T) & ((T) -> T)
 
 local function source<T>(initial_value: T): Source<T>
-    if type(initial_value) == "function" then
-        return initial_value
-    end
-
     local node = create_start_node(initial_value)
 
     return function(...): T
@@ -32,4 +28,4 @@ local function source<T>(initial_value: T): Source<T>
     end
 end
 
-return source :: (<T>(source: Source<T>) -> Source<T>) & (<T>(initial_value: T) -> Source<T>) & (<T>() -> Source<T>)
+return source :: (<T>(initial_value: T) -> Source<T>) & (<T>() -> Source<T>)
diff --git a/test/tests.luau b/test/tests.luau
index 4e79fff..b0e7e67 100644
--- a/test/tests.luau
+++ b/test/tests.luau
@@ -359,12 +359,6 @@ TEST("source()", wrap_root(function()
         CHECK(src() == 2)
     end
 
-    do CASE "echo if value is a source"
-        local a = source(1)
-        local b = source(a)
-        CHECK(a == b)
-    end
-
     do CASE "does not update if same value"
         local src = source(1)