diff --git a/common/unix-debug.mk b/common/unix-debug.mk
index 275eb4d6..f304dac4 100644
--- a/common/unix-debug.mk
+++ b/common/unix-debug.mk
@@ -1,7 +1,7 @@
 ARCH := $(shell uname -m)
 
 ifeq (1,$(shell $(CC) --version | grep clang > /dev/null && echo 1 || echo 0))
-  ifeq (1,$(shell ld.mold --version > /dev/null && echo 1 || echo 0))
+  ifeq (1,$(shell ld.mold --version > /dev/null 2> /dev/null && echo 1 || echo 0))
 LDFLAGS := -fuse-ld=mold
   endif
 endif
diff --git a/common/unix-release.mk b/common/unix-release.mk
index ccff2679..a91ddb09 100644
--- a/common/unix-release.mk
+++ b/common/unix-release.mk
@@ -3,7 +3,7 @@ ARCH := $(shell uname -m)
 ifeq (0,$(shell $(CC) --version | grep clang > /dev/null && echo 1 || echo 0))
 CFLAGS += -s
 else
-  ifeq (1,$(shell ld.mold --version > /dev/null && echo 1 || echo 0))
+  ifeq (1,$(shell ld.mold --version > /dev/null 2> /dev/null && echo 1 || echo 0))
 LDFLAGS := -s -fuse-ld=mold
   else
 LDFLAGS := -s