diff --git a/package/memtester/memtester.mk b/package/memtester/memtester.mk
index 900c10d2b..d12babca3 100644
--- a/package/memtester/memtester.mk
+++ b/package/memtester/memtester.mk
@@ -12,7 +12,7 @@ MEMTESTER_LICENSE_FILES = COPYING
 MEMTESTER_TARGET_INSTALL_OPTS = INSTALLPATH=$(TARGET_DIR)/usr
 
 define MEMTESTER_BUILD_CMDS
-	$(SED) "s,cc,$(TARGET_CC)," $(@D)/conf-*
+	$(SED) "s,^cc,$(TARGET_CC)," $(@D)/conf-*
 	$(MAKE) $(TARGET_CONFIGURE_OPTS) -C $(@D)
 endef