diff --git a/lib/std/core/dstring.c3 b/lib/std/core/dstring.c3
index 406014ef8..9d5c78646 100644
--- a/lib/std/core/dstring.c3
+++ b/lib/std/core/dstring.c3
@@ -48,6 +48,56 @@ fn DString new(String c = "", Allocator allocator = allocator::heap())
 
 fn DString temp_new(String s = "") => new(s, allocator::temp()) @inline;
 
+
+fn void DString.replace_char(self, char ch, char replacement)
+{
+	StringData* data = self.data();
+	foreach (&c : data.chars[:data.len])
+	{
+		if (*c == ch) *c = replacement;
+	}
+}
+
+fn void DString.replace(&self, String needle, String replacement)
+{
+	StringData* data = self.data();
+	usz needle_len = needle.len;
+	if (!data || data.len < needle_len) return;
+	usz replace_len = replacement.len;
+	if (needle_len == 1 && replace_len == 1)
+	{
+		self.replace_char(needle[0], replacement[0]);
+		return;
+	}
+	@pool(data.allocator) {
+		String str = self.tcopy_str();
+		self.clear();
+		usz len = str.len;
+		usz match = 0;
+		foreach (i, c : str)
+		{
+			if (c == needle[match])
+    	    {
+    	        match++;
+    		    if (match == needle_len)
+    		    {
+    			    self.append_chars(replacement);
+    			    match = 0;
+    			    continue;
+    		    }
+    		    continue;
+    		}
+    		if (match > 0)
+    		{
+    		    self.append_chars(str[i - match:match]);
+    		    match = 0;
+    		}
+    		self.append_char(c);
+    	}
+    	if (match > 0) self.append_chars(str[^match:match]);
+	};
+}
+
 fn DString DString.new_concat(self, DString b, Allocator allocator = allocator::heap())
 {
 	DString string;
diff --git a/releasenotes.md b/releasenotes.md
index 9b02691f3..3f9ed21b7 100644
--- a/releasenotes.md
+++ b/releasenotes.md
@@ -78,6 +78,7 @@
 - Deprecated `path.append`, `path.tappend`, `getcwd`, `tgetcwd`, `path.absolute`, `ls`.
 - Deprecated `env::get_config_dir`, replaced by `env::new_get_config_dir`.
 - Added `path.has_extension`, `path.new_append`, `path.temp_append`, `new_cwd`, `temp_cwd`, `path.new_absolute`, `new_ls`, `temp_ls`.
+- Added `dstring.replace`
 
 ## 0.6.1 Change list
 
diff --git a/src/compiler/sema_passes.c b/src/compiler/sema_passes.c
index 31c1f976a..34d479e6d 100644
--- a/src/compiler/sema_passes.c
+++ b/src/compiler/sema_passes.c
@@ -205,7 +205,7 @@ static bool exec_arg_append_to_scratch(Expr *arg)
 		case CONST_TYPEID:
 			if (!arg->const_expr.typeid->name)
 			{
-				RETURN_PRINT_ERROR_AT(NULL, arg, "The type '%s' has no trivial name.",
+				RETURN_PRINT_ERROR_AT(false, arg, "The type '%s' has no trivial name.",
 				                      type_quoted_error_string(arg->const_expr.typeid));
 			}
 			scratch_buffer_append(arg->const_expr.typeid->name);
diff --git a/src/utils/find_msvc.c b/src/utils/find_msvc.c
index 3eaea34f2..667528f1c 100644
--- a/src/utils/find_msvc.c
+++ b/src/utils/find_msvc.c
@@ -39,7 +39,7 @@ static char *find_visual_studio(void)
 	const char *install_path = NULL;
 
 	// Call vswhere.exe
-	if (!execute_cmd_failable(scratch_buffer_to_string(), &install_path))
+	if (!execute_cmd_failable(scratch_buffer_to_string(), &install_path, NULL))
 	{
 		error_exit("Failed to find vswhere.exe to detect MSVC.");
 	}
diff --git a/test/unit/stdlib/core/dstring.c3 b/test/unit/stdlib/core/dstring.c3
index 94c40a0bd..d0b79ecd5 100644
--- a/test/unit/stdlib/core/dstring.c3
+++ b/test/unit/stdlib/core/dstring.c3
@@ -2,6 +2,14 @@ module std::core::dstring2 @test;
 
 const TEST_STRING = "hello world";
 
+fn void test_replace()
+{
+	DString hello = dstring::new("Hello world where are you? Are you here too?");
+	defer hello.free();
+	hello.replace("u", "ooo");
+	assert(hello.str_view() == "Hello world where are yoooo? Are yoooo here too?");
+}
+
 fn void test_delete()
 {
 	{