diff --git a/unittest/UnitTest.cpp b/unittest/UnitTest.cpp
index 1789b97ad0..e8718d6680 100644
--- a/unittest/UnitTest.cpp
+++ b/unittest/UnitTest.cpp
@@ -58,6 +58,8 @@
 #include "Common/CPUDetect.h"
 #include "Common/Log.h"
 #include "Core/Config.h"
+#include "Common/File/VFS/VFS.h"
+#include "Common/File/VFS/DirectoryReader.h"
 #include "Core/FileSystems/ISOFileSystem.h"
 #include "Core/MemMap.h"
 #include "Core/MIPS/MIPSVFPUUtils.h"
@@ -352,6 +354,9 @@ bool TestTinySet() {
 
 bool TestVFPUSinCos() {
 	float sine, cosine;
+	// Needed for VFPU tables.
+	// There might be a better place to invoke it, but whatever.
+	g_VFS.Register("", new DirectoryReader(Path("assets")));
 	InitVFPU();
 	vfpu_sincos(0.0f, sine, cosine);
 	EXPECT_EQ_FLOAT(sine, 0.0f);