diff --git a/src/link/Coff.zig b/src/link/Coff.zig
index 8c60086010..096fa2cd0b 100644
--- a/src/link/Coff.zig
+++ b/src/link/Coff.zig
@@ -413,6 +413,8 @@ pub fn createEmpty(gpa: *Allocator, options: link.Options) !*Coff {
 }
 
 pub fn allocateDeclIndexes(self: *Coff, decl: *Module.Decl) !void {
+    if (self.llvm_ir_module) |_| return;
+
     try self.offset_table.ensureCapacity(self.base.allocator, self.offset_table.items.len + 1);
 
     if (self.offset_table_free_list.popOrNull()) |i| {
@@ -710,6 +712,8 @@ pub fn updateDecl(self: *Coff, module: *Module, decl: *Module.Decl) !void {
 }
 
 pub fn freeDecl(self: *Coff, decl: *Module.Decl) void {
+    if (self.llvm_ir_module) |_| return;
+
     // Appending to free lists is allowed to fail because the free lists are heuristics based anyway.
     self.freeTextBlock(&decl.link.coff);
     self.offset_table_free_list.append(self.base.allocator, decl.link.coff.offset_table_index) catch {};
@@ -1245,6 +1249,7 @@ fn linkWithLLD(self: *Coff, comp: *Compilation) !void {
 }
 
 pub fn getDeclVAddr(self: *Coff, decl: *const Module.Decl) u64 {
+    assert(self.llvm_ir_module == null);
     return self.text_section_virtual_address + decl.link.coff.text_offset;
 }
 
diff --git a/src/link/Elf.zig b/src/link/Elf.zig
index 9472f8fca7..25b883f8c6 100644
--- a/src/link/Elf.zig
+++ b/src/link/Elf.zig
@@ -318,6 +318,7 @@ pub fn deinit(self: *Elf) void {
 }
 
 pub fn getDeclVAddr(self: *Elf, decl: *const Module.Decl) u64 {
+    assert(self.llvm_ir_module == null);
     assert(decl.link.elf.local_sym_index != 0);
     return self.local_symbols.items[decl.link.elf.local_sym_index].st_value;
 }
@@ -437,7 +438,7 @@ fn updateString(self: *Elf, old_str_off: u32, new_name: []const u8) !u32 {
 }
 
 pub fn populateMissingMetadata(self: *Elf) !void {
-    if (self.llvm_ir_module) |_| return;
+    assert(self.llvm_ir_module == null);
 
     const small_ptr = switch (self.ptr_width) {
         .p32 => true,