diff --git a/src/llvm_backend.cpp b/src/llvm_backend.cpp
index 931813f42..a4259b01e 100644
--- a/src/llvm_backend.cpp
+++ b/src/llvm_backend.cpp
@@ -3583,6 +3583,7 @@ gb_internal bool lb_generate_code(lbGenerator *gen) {
 			lb_add_raddbg_string(m, "type_view: {type: \"[]?\",        expr: \"array(data, len)\"}");
 			lb_add_raddbg_string(m, "type_view: {type: \"string\",     expr: \"array(data, len)\"}");
 			lb_add_raddbg_string(m, "type_view: {type: \"[dynamic]?\", expr: \"rows($, array(data, len), len, cap, allocator)\"}");
+			lb_add_raddbg_string(m, "type_view: {type: \"[dynamic;?]?\", expr: \"rows($, array(data, len), len)\"}");
 
 			// column major matrices
 			lb_add_raddbg_string(m, "type_view: {type: \"matrix[1, ?]?\",  expr: \"columns($.data, $[0])\"}");
diff --git a/src/llvm_backend_debug.cpp b/src/llvm_backend_debug.cpp
index 4b09d3d5e..d3e63cbf7 100644
--- a/src/llvm_backend_debug.cpp
+++ b/src/llvm_backend_debug.cpp
@@ -442,14 +442,14 @@ gb_internal LLVMMetadataRef lb_debug_fixed_capacity_dynamic_array(lbModule *m, T
 		LLVMDIFlagZero, lb_debug_type(m, elem_type)
 	);
 
-	i64 len_offset = type_offset_of(bt, 1);
+	i64 len_offset_in_bits = 8*type_offset_of(bt, 1);
 
 	elements[1] = LLVMDIBuilderCreateMemberType(
 		m->debug_builder, member_scope,
 		"len", 3,
 		file, line,
 		int_bits, int_bits,
-		len_offset,
+		len_offset_in_bits,
 		LLVMDIFlagZero, lb_debug_type(m, t_int)
 	);