diff --git a/Source/UnitTest/test_decode.cpp b/Source/UnitTest/test_decode.cpp
index e1364b662c2e9fa4ec841ac6cd42e78af2f06ebc..01fe6e54ca4259b5ef72154261cc1273ff8843ae 100644
--- a/Source/UnitTest/test_decode.cpp
+++ b/Source/UnitTest/test_decode.cpp
@@ -23,7 +23,7 @@
 
 #include "gtest/gtest.h"
 
-#include "../astcenc.h"
+#include "//third_party/astc-encoder/Source/astcenc.h"
 
 namespace astcenc
 {
diff --git a/Source/UnitTest/test_simd.cpp b/Source/UnitTest/test_simd.cpp
index 9424c9952a1b4eb003675383a87cf0a76368f6e3..9f20e2f15a2bced803a4b109c931a6744c67f84e 100644
--- a/Source/UnitTest/test_simd.cpp
+++ b/Source/UnitTest/test_simd.cpp
@@ -23,8 +23,8 @@
 
 #include "gtest/gtest.h"
 
-#include "../astcenc_internal.h"
-#include "../astcenc_vecmathlib.h"
+#include "//third_party/astc-encoder/Source/astcenc_internal.h"
+#include "//third_party/astc-encoder/Source/astcenc_vecmathlib.h"
 
 namespace astcenc
 {
diff --git a/Source/UnitTest/test_softfloat.cpp b/Source/UnitTest/test_softfloat.cpp
index 6e376160b4021af48e994c3e850daeddad2d18e9..2ecec32916a27a166993356879c048ab86a55f8c 100644
--- a/Source/UnitTest/test_softfloat.cpp
+++ b/Source/UnitTest/test_softfloat.cpp
@@ -21,7 +21,7 @@
 
 #include "gtest/gtest.h"
 
-#include "../astcenc_internal.h"
+#include "//third_party/astc-encoder/Source/astcenc_internal.h"
 
 namespace astcenc
 {
diff --git a/Utils/astcenc_u8_test_bench.cpp b/Utils/astcenc_u8_test_bench.cpp
index b44d6954ea524eed6177b3fefd28594cff3933a3..0432425bece2aa4d9a09650b810297349f2b9b93 100644
--- a/Utils/astcenc_u8_test_bench.cpp
+++ b/Utils/astcenc_u8_test_bench.cpp
@@ -26,9 +26,9 @@
 #define ASTCENC_F16C 1
 #define ASTCENC_SSE 41
 
-#include "../Source/astcenc_mathlib.cpp"
-#include "../Source/astcenc_color_unquantize.cpp"
-#include "../Source/astcenc_decompress_symbolic.cpp"
+#include "//third_party/astc-encoder/Source/astcenc_mathlib.cpp"
+#include "//third_party/astc-encoder/Source/astcenc_color_unquantize.cpp"
+#include "//third_party/astc-encoder/Source/astcenc_decompress_symbolic.cpp"
 
 int main()
 {