diff --git a/toolchain/uClibc/uclibc.mk b/toolchain/uClibc/uclibc.mk
index f5d2bf48b6..2616974f4d 100644
--- a/toolchain/uClibc/uclibc.mk
+++ b/toolchain/uClibc/uclibc.mk
@@ -143,19 +143,19 @@ else
 	echo "# UCLIBC_HAS_FOPEN_LARGEFILE_MODE is not set" >> $(UCLIBC_DIR)/.config
 endif
 ifeq ($(BR2_INET_IPV6),y)
-	$(SED) 's.^.*UCLIBC_HAS_IPV6.*,UCLIBC_HAS_IPV6=y,g' $(UCLIBC_DIR)/.config
+	$(SED) 's,^.*UCLIBC_HAS_IPV6.*,UCLIBC_HAS_IPV6=y,g' $(UCLIBC_DIR)/.config
 else
-	$(SED) 's.^.*UCLIBC_HAS_IPV6.*,UCLIBC_HAS_IPV6=n,g' $(UCLIBC_DIR)/.config
+	$(SED) 's,^.*UCLIBC_HAS_IPV6.*,UCLIBC_HAS_IPV6=n,g' $(UCLIBC_DIR)/.config
 endif
 ifeq ($(BR2_INET_RPC),y)
-	$(SED) 's.^.*UCLIBC_HAS_RPC.*,UCLIBC_HAS_RPC=y,g' \
-		-e 's.^.*UCLIBC_HAS_FULL_RPC.*,UCLIBC_HAS_FULL_RPC=y,g' \
-		-e 's.^.*UCLIBC_HAS_REENTRANT_RPC.*,UCLIBC_HAS_REENTRANT_RPC=y,g'
+	$(SED) 's,^.*UCLIBC_HAS_RPC.*,UCLIBC_HAS_RPC=y,g' \
+		-e 's,^.*UCLIBC_HAS_FULL_RPC.*,UCLIBC_HAS_FULL_RPC=y,g' \
+		-e 's,^.*UCLIBC_HAS_REENTRANT_RPC.*,UCLIBC_HAS_REENTRANT_RPC=y,g' \
 		$(UCLIBC_DIR)/.config
 else
-	$(SED) 's.^.*UCLIBC_HAS_RPC.*,UCLIBC_HAS_RPC=n,g' \
-		-e 's.^.*UCLIBC_HAS_FULL_RPC.*,UCLIBC_HAS_FULL_RPC=n,g' \
-		-e 's.^.*UCLIBC_HAS_REENTRANT_RPC.*,UCLIBC_HAS_REENTRANT_RPC=n,g'
+	$(SED) 's,^.*UCLIBC_HAS_RPC.*,UCLIBC_HAS_RPC=n,g' \
+		-e 's,^.*UCLIBC_HAS_FULL_RPC.*,UCLIBC_HAS_FULL_RPC=n,g' \
+		-e 's,^.*UCLIBC_HAS_REENTRANT_RPC.*,UCLIBC_HAS_REENTRANT_RPC=n,g' \
 		$(UCLIBC_DIR)/.config
 endif
 ifeq ($(BR2_SOFT_FLOAT),y)