diff --git a/src/libexpr/local.mk b/src/libexpr/local.mk
index ccd5293e4..00d6d75c1 100644
--- a/src/libexpr/local.mk
+++ b/src/libexpr/local.mk
@@ -9,7 +9,7 @@ libexpr_SOURCES := $(wildcard $(d)/*.cc) $(wildcard $(d)/primops/*.cc) $(d)/lexe
 libexpr_LIBS = libutil libstore
 
 libexpr_LDFLAGS =
-ifneq ($(OS), FreeBSD)
+ifeq ($(OS), Linux)
  libexpr_LDFLAGS += -ldl
 endif
 
diff --git a/src/libstore/local.mk b/src/libstore/local.mk
index d690fea28..bc665f2cb 100644
--- a/src/libstore/local.mk
+++ b/src/libstore/local.mk
@@ -9,7 +9,7 @@ libstore_SOURCES := $(wildcard $(d)/*.cc $(d)/builtins/*.cc)
 libstore_LIBS = libutil
 
 libstore_LDFLAGS = $(SQLITE3_LIBS) -lbz2 $(LIBCURL_LIBS) $(SODIUM_LIBS) -pthread
-ifneq ($(OS), FreeBSD)
+ifeq ($(OS), Linux)
  libstore_LDFLAGS += -ldl
 endif