diff --git a/arch/x86_64/src/common/Toolchain.defs b/arch/x86_64/src/common/Toolchain.defs
index e8613edf04..9cc456593e 100644
--- a/arch/x86_64/src/common/Toolchain.defs
+++ b/arch/x86_64/src/common/Toolchain.defs
@@ -180,8 +180,6 @@ ifeq ($(CONFIG_HOST_MACOS),y)
 AFLAGS += -Wa,--divide
 endif
 
-EXEEXT = .elf
-	
 LDFLAGS += -nostdlib -static
 
 # Loadable module definitions