diff --git a/GNUmakefile.in b/GNUmakefile.in
index 13afd21d..34dca77f 100644
--- a/GNUmakefile.in
+++ b/GNUmakefile.in
@@ -180,12 +180,12 @@ uninstall:
 
 $(call MKESCAPE,$(BUILDDIR))/stage1.stamp: $(STAGE1_FILES) $(call MKESCAPE,$(BUILDDIR))/decompressor-build/decompressor.bin $(call MKESCAPE,$(BUILDDIR))/common-bios/stage2.bin.gz
 	$(MKDIR_P) '$(call SHESCAPE,$(BINDIR))'
-	cd '$(call SHESCAPE,$(SRCDIR))/stage1/hdd' && nasm bootsect.asm $(WERROR_FLAG) -fbin -DBUILDDIR="'"'$(call NASMESCAPE,$(BUILDDIR))'"'" -o '$(call SHESCAPE,$(BINDIR))/limine-hdd.bin'
+	cd '$(call SHESCAPE,$(SRCDIR))/stage1/hdd' && nasm bootsect.asm -Wall $(WERROR_FLAG) -fbin -DBUILDDIR="'"'$(call NASMESCAPE,$(BUILDDIR))'"'" -o '$(call SHESCAPE,$(BINDIR))/limine-hdd.bin'
 ifneq ($(BUILD_CD),no)
-	cd '$(call SHESCAPE,$(SRCDIR))/stage1/cd'  && nasm bootsect.asm $(WERROR_FLAG) -fbin -DBUILDDIR="'"'$(call NASMESCAPE,$(BUILDDIR))'"'" -o '$(call SHESCAPE,$(BINDIR))/limine-cd.bin'
+	cd '$(call SHESCAPE,$(SRCDIR))/stage1/cd'  && nasm bootsect.asm -Wall $(WERROR_FLAG) -fbin -DBUILDDIR="'"'$(call NASMESCAPE,$(BUILDDIR))'"'" -o '$(call SHESCAPE,$(BINDIR))/limine-cd.bin'
 endif
 ifneq ($(BUILD_PXE),no)
-	cd '$(call SHESCAPE,$(SRCDIR))/stage1/pxe' && nasm bootsect.asm $(WERROR_FLAG) -fbin -DBUILDDIR="'"'$(call NASMESCAPE,$(BUILDDIR))'"'" -o '$(call SHESCAPE,$(BINDIR))/limine-pxe.bin'
+	cd '$(call SHESCAPE,$(SRCDIR))/stage1/pxe' && nasm bootsect.asm -Wall $(WERROR_FLAG) -fbin -DBUILDDIR="'"'$(call NASMESCAPE,$(BUILDDIR))'"'" -o '$(call SHESCAPE,$(BINDIR))/limine-pxe.bin'
 endif
 	cp '$(call SHESCAPE,$(BUILDDIR))/common-bios/limine.sys' '$(call SHESCAPE,$(BINDIR))/'
 	touch '$(call SHESCAPE,$(BUILDDIR))/stage1.stamp'
diff --git a/common/GNUmakefile b/common/GNUmakefile
index 94b051d0..3f4f3ac8 100644
--- a/common/GNUmakefile
+++ b/common/GNUmakefile
@@ -468,29 +468,29 @@ endif
 ifeq ($(TARGET),bios)
 $(call MKESCAPE,$(BUILDDIR))/%.o: %.asm_ia32
 	$(MKDIR_P) "$$(dirname '$(call SHESCAPE,$@)')"
-	nasm '$(call SHESCAPE,$<)' -F dwarf -g $(WERROR_FLAG) -f elf32 -o '$(call SHESCAPE,$@)'
+	nasm '$(call SHESCAPE,$<)' -F dwarf -g -Wall $(WERROR_FLAG) -f elf32 -o '$(call SHESCAPE,$@)'
 
 $(call MKESCAPE,$(BUILDDIR))/%.o: %.asm_bios_ia32
 	$(MKDIR_P) "$$(dirname '$(call SHESCAPE,$@)')"
-	nasm '$(call SHESCAPE,$<)' -F dwarf -g $(WERROR_FLAG) -f elf32 -o '$(call SHESCAPE,$@)'
+	nasm '$(call SHESCAPE,$<)' -F dwarf -g -Wall $(WERROR_FLAG) -f elf32 -o '$(call SHESCAPE,$@)'
 
 $(call MKESCAPE,$(BUILDDIR))/%.o: %.asm_x86
 	$(MKDIR_P) "$$(dirname '$(call SHESCAPE,$@)')"
-	nasm '$(call SHESCAPE,$<)' -F dwarf -g $(WERROR_FLAG) -f elf32 -o '$(call SHESCAPE,$@)'
+	nasm '$(call SHESCAPE,$<)' -F dwarf -g -Wall $(WERROR_FLAG) -f elf32 -o '$(call SHESCAPE,$@)'
 endif
 
 ifeq ($(TARGET),uefi-x86-64)
 $(call MKESCAPE,$(BUILDDIR))/%.o: %.asm_x86_64
 	$(MKDIR_P) "$$(dirname '$(call SHESCAPE,$@)')"
-	nasm '$(call SHESCAPE,$<)' -F dwarf -g $(WERROR_FLAG) -f elf64 -o '$(call SHESCAPE,$@)'
+	nasm '$(call SHESCAPE,$<)' -F dwarf -g -Wall $(WERROR_FLAG) -f elf64 -o '$(call SHESCAPE,$@)'
 
 $(call MKESCAPE,$(BUILDDIR))/%.o: %.asm_uefi_x86_64
 	$(MKDIR_P) "$$(dirname '$(call SHESCAPE,$@)')"
-	nasm '$(call SHESCAPE,$<)' -F dwarf -g $(WERROR_FLAG) -f elf64 -o '$(call SHESCAPE,$@)'
+	nasm '$(call SHESCAPE,$<)' -F dwarf -g -Wall $(WERROR_FLAG) -f elf64 -o '$(call SHESCAPE,$@)'
 
 $(call MKESCAPE,$(BUILDDIR))/%.o: %.asm_x86
 	$(MKDIR_P) "$$(dirname '$(call SHESCAPE,$@)')"
-	nasm '$(call SHESCAPE,$<)' -F dwarf -g $(WERROR_FLAG) -f elf64 -o '$(call SHESCAPE,$@)'
+	nasm '$(call SHESCAPE,$<)' -F dwarf -g -Wall $(WERROR_FLAG) -f elf64 -o '$(call SHESCAPE,$@)'
 endif
 
 ifeq ($(TARGET),uefi-aarch64)
@@ -506,13 +506,13 @@ endif
 ifeq ($(TARGET),uefi-ia32)
 $(call MKESCAPE,$(BUILDDIR))/%.o: %.asm_ia32
 	$(MKDIR_P) "$$(dirname '$(call SHESCAPE,$@)')"
-	nasm '$(call SHESCAPE,$<)' -F dwarf -g $(WERROR_FLAG) -f elf32 -o '$(call SHESCAPE,$@)'
+	nasm '$(call SHESCAPE,$<)' -F dwarf -g -Wall $(WERROR_FLAG) -f elf32 -o '$(call SHESCAPE,$@)'
 
 $(call MKESCAPE,$(BUILDDIR))/%.o: %.asm_uefi_ia32
 	$(MKDIR_P) "$$(dirname '$(call SHESCAPE,$@)')"
-	nasm '$(call SHESCAPE,$<)' -F dwarf -g $(WERROR_FLAG) -f elf32 -o '$(call SHESCAPE,$@)'
+	nasm '$(call SHESCAPE,$<)' -F dwarf -g -Wall $(WERROR_FLAG) -f elf32 -o '$(call SHESCAPE,$@)'
 
 $(call MKESCAPE,$(BUILDDIR))/%.o: %.asm_x86
 	$(MKDIR_P) "$$(dirname '$(call SHESCAPE,$@)')"
-	nasm '$(call SHESCAPE,$<)' -F dwarf -g $(WERROR_FLAG) -f elf32 -o '$(call SHESCAPE,$@)'
+	nasm '$(call SHESCAPE,$<)' -F dwarf -g -Wall $(WERROR_FLAG) -f elf32 -o '$(call SHESCAPE,$@)'
 endif
diff --git a/decompressor/GNUmakefile b/decompressor/GNUmakefile
index c3911bfe..01362841 100644
--- a/decompressor/GNUmakefile
+++ b/decompressor/GNUmakefile
@@ -94,4 +94,4 @@ $(call MKESCAPE,$(BUILDDIR))/%.o: %.c $(call MKESCAPE,$(BUILDDIR))/tinf-copied
 
 $(call MKESCAPE,$(BUILDDIR))/%.o: %.asm
 	$(MKDIR_P) "$$(dirname '$(call SHESCAPE,$@)')"
-	nasm '$(call SHESCAPE,$<)' -f elf32 -o '$(call SHESCAPE,$@)'
+	nasm '$(call SHESCAPE,$<)' -Wall $(WERROR_FLAG) -f elf32 -o '$(call SHESCAPE,$@)'