diff --git a/depends/packages/capnp.mk b/depends/packages/capnp.mk
index dff92d9e61f..f8c4406f3e2 100644
--- a/depends/packages/capnp.mk
+++ b/depends/packages/capnp.mk
@@ -6,7 +6,7 @@ $(package)_file_name=$(native_$(package)_file_name)
 $(package)_sha256_hash=$(native_$(package)_sha256_hash)
 $(package)_patches=abi_placement_new.patch
 
-define $(package)_set_vars :=
+define $(package)_set_vars
   $(package)_config_opts := -DBUILD_TESTING=OFF
   $(package)_config_opts += -DWITH_OPENSSL=OFF
   $(package)_config_opts += -DWITH_ZLIB=OFF
diff --git a/depends/packages/libmultiprocess.mk b/depends/packages/libmultiprocess.mk
index afbd315e388..47064a9bb6c 100644
--- a/depends/packages/libmultiprocess.mk
+++ b/depends/packages/libmultiprocess.mk
@@ -8,7 +8,7 @@ ifneq ($(host),$(build))
 $(package)_dependencies += native_capnp
 endif
 
-define $(package)_set_vars :=
+define $(package)_set_vars
 ifneq ($(host),$(build))
 $(package)_config_opts := -DCAPNP_EXECUTABLE="$$(native_capnp_prefixbin)/capnp"
 $(package)_config_opts += -DCAPNPC_CXX_EXECUTABLE="$$(native_capnp_prefixbin)/capnpc-c++"