diff --git a/Libraries/LibJS/Heap/Heap.cpp b/Libraries/LibJS/Heap/Heap.cpp
index cbb012763cd..7cde4258888 100644
--- a/Libraries/LibJS/Heap/Heap.cpp
+++ b/Libraries/LibJS/Heap/Heap.cpp
@@ -285,14 +285,14 @@ void Heap::sweep_dead_cells(bool print_report, const Core::ElapsedTimer& measure
     int time_spent = measurement_timer.elapsed();
 
     if (print_report) {
-        dbg() << "Garbage collection report";
-        dbg() << "=============================================";
-        dbg() << "     Time spent: " << time_spent << " ms";
-        dbg() << "     Live cells: " << live_cells << " (" << live_cell_bytes << " bytes)";
-        dbg() << "Collected cells: " << collected_cells << " (" << collected_cell_bytes << " bytes)";
-        dbg() << "    Live blocks: " << m_blocks.size() << " (" << m_blocks.size() * HeapBlock::block_size << " bytes)";
-        dbg() << "   Freed blocks: " << empty_blocks.size() << " (" << empty_blocks.size() * HeapBlock::block_size << " bytes)";
-        dbg() << "=============================================";
+        dbgln("Garbage collection report");
+        dbgln("=============================================");
+        dbgln("     Time spent: {} ms", time_spent);
+        dbgln("     Live cells: {} ({} bytes)", live_cells, live_cell_bytes);
+        dbgln("Collected cells: {} ({} bytes)", collected_cells, collected_cell_bytes);
+        dbgln("    Live blocks: {} ({} bytes)", m_blocks.size(), m_blocks.size() * HeapBlock::block_size);
+        dbgln("   Freed blocks: {} ({} bytes)", empty_blocks.size(), empty_blocks.size() * HeapBlock::block_size);
+        dbgln("=============================================");
     }
 }
 
diff --git a/Libraries/LibJS/MarkupGenerator.cpp b/Libraries/LibJS/MarkupGenerator.cpp
index 555c3bdd6d6..f08ab55b0a0 100644
--- a/Libraries/LibJS/MarkupGenerator.cpp
+++ b/Libraries/LibJS/MarkupGenerator.cpp
@@ -331,7 +331,7 @@ MarkupGenerator::StyleType MarkupGenerator::style_type_for_token(Token token)
     case TokenType::Identifier:
         return StyleType::Identifier;
     default:
-        dbg() << "Unknown style type for token " << token.name();
+        dbgln("Unknown style type for token {}", token.name());
         ASSERT_NOT_REACHED();
     }
 }
diff --git a/Libraries/LibJS/Runtime/VM.cpp b/Libraries/LibJS/Runtime/VM.cpp
index 40c48102fdc..5791c30b83e 100644
--- a/Libraries/LibJS/Runtime/VM.cpp
+++ b/Libraries/LibJS/Runtime/VM.cpp
@@ -255,13 +255,13 @@ void VM::throw_exception(Exception* exception)
 #ifdef VM_DEBUG
     if (exception->value().is_object() && exception->value().as_object().is_error()) {
         auto& error = static_cast<Error&>(exception->value().as_object());
-        dbg() << "Throwing JavaScript Error: " << error.name() << ", " << error.message();
+        dbgln("Throwing JavaScript Error: {}, {}", error.name(), error.message());
 
         for (ssize_t i = m_call_stack.size() - 1; i >= 0; --i) {
             auto function_name = m_call_stack[i].function_name;
             if (function_name.is_empty())
                 function_name = "<anonymous>";
-            dbg() << "  " << function_name;
+            dbgln("  {}", function_name);
         }
     }
 #endif