diff --git a/src/gba/rr/vbm.c b/src/gba/rr/vbm.c
index 5a3f0d0b6..c9ebca2e4 100644
--- a/src/gba/rr/vbm.c
+++ b/src/gba/rr/vbm.c
@@ -245,7 +245,7 @@ bool GBAVBMSetStream(struct GBAVBMContext* vbm, struct VFile* vf) {
 	uint8_t flags;
 	vf->read(vf, &flags, sizeof(flags));
 	if (flags & 2) {
-#if USE_ZLIB
+#ifdef USE_ZLIB
 		vbm->d.initFrom = INIT_FROM_SAVEGAME;
 #else
 		// zlib is needed to parse the savegame
diff --git a/src/util/vfs.c b/src/util/vfs.c
index 5f6533762..27932c717 100644
--- a/src/util/vfs.c
+++ b/src/util/vfs.c
@@ -104,7 +104,7 @@ struct VDir* VDirOpenArchive(const char* path) {
 		dir = VDirOpenZip(path, 0);
 	}
 #endif
-#if USE_LZMA
+#ifdef USE_LZMA
 	if (!dir) {
 		dir = VDirOpen7z(path, 0);
 	}