diff --git a/src/lib/formats/fs_oric_jasmin.cpp b/src/lib/formats/fs_oric_jasmin.cpp
index 28a5bf89ac3..f51d18ace4e 100644
--- a/src/lib/formats/fs_oric_jasmin.cpp
+++ b/src/lib/formats/fs_oric_jasmin.cpp
@@ -57,7 +57,7 @@ public:
 	virtual dir_t root() override;
 
 	static u32 cs_to_block(u16 ref);
-	static u16 block_to_cs(u32 block);
+	[[maybe_unused]] static u16 block_to_cs(u32 block);
 
 	bool ref_valid(u16 ref);
 	static std::string read_file_name(const u8 *p);
diff --git a/src/lib/formats/fs_prodos.cpp b/src/lib/formats/fs_prodos.cpp
index c812f7ec87b..2aac74bfb2e 100644
--- a/src/lib/formats/fs_prodos.cpp
+++ b/src/lib/formats/fs_prodos.cpp
@@ -52,7 +52,7 @@ private:
 		u16 m_base_block;
 
 		std::pair<fsblk_t::block_t, const u8 *> get_entry_ro(u64 key);
-		std::pair<fsblk_t::block_t, u8 *> get_entry(u64 key);
+		[[maybe_unused]] std::pair<fsblk_t::block_t, u8 *> get_entry(u64 key);
 	};
 
 	class dir : public root_dir {