diff --git a/tests/regression/tex/Makefile b/tests/regression/tex/Makefile
index fd9f195d..ff38c514 100644
--- a/tests/regression/tex/Makefile
+++ b/tests/regression/tex/Makefile
@@ -10,7 +10,7 @@ VX_DP  = $(RISCV_TOOLCHAIN_PATH)/bin/riscv32-unknown-elf-objdump
 VX_CP  = $(RISCV_TOOLCHAIN_PATH)/bin/riscv32-unknown-elf-objcopy
 
 VX_CFLAGS += -std=c++11 -march=rv32imf -mabi=ilp32f -O3 -Wstack-usage=1024 -ffreestanding -nostartfiles -fdata-sections -ffunction-sections
-VX_CFLAGS += -DENABLE_SW -I$(VORTEX_RT_PATH)/include -I$(VORTEX_RT_PATH)/../hw -I$(VORTEX_RT_PATH)/../sim/common -I$(VORTEX_RT_PATH)/../third_party/cocogfx/include
+VX_CFLAGS += -DENABLE_SW -I$(VORTEX_RT_PATH)/include -I$(VORTEX_RT_PATH)/../hw -I$(VORTEX_RT_PATH)/../sim/common -I$(VORTEX_RT_PATH)/../third_party
 
 VX_LDFLAGS += -Wl,-Bstatic,-T,$(VORTEX_RT_PATH)/linker/vx_link.ld -Wl,--gc-sections $(VORTEX_RT_PATH)/libvortexrt.a
 
@@ -19,7 +19,7 @@ VX_SRCS = kernel.c
 #CXXFLAGS += -std=c++11 -O2 -Wall -Wextra -Wfatal-errors
 CXXFLAGS += -std=c++11 -O0 -g -Wall -Wextra -Wfatal-errors
 
-CXXFLAGS += -I$(VORTEX_DRV_PATH)/include -I$(VORTEX_RT_PATH)/../hw -I$(VORTEX_RT_PATH)/../sim/common -I$(VORTEX_RT_PATH)/../third_party/cocogfx/include
+CXXFLAGS += -I$(VORTEX_DRV_PATH)/include -I$(VORTEX_RT_PATH)/../hw -I$(VORTEX_RT_PATH)/../sim/common -I$(VORTEX_RT_PATH)/../third_party
 
 LDFLAGS += -L$(VORTEX_DRV_PATH)/stub -lvortex $(VORTEX_RT_PATH)/../third_party/cocogfx/libcocogfx.a -lz
 
diff --git a/tests/regression/tex/utils.cpp b/tests/regression/tex/utils.cpp
index e76b72f9..aee98293 100644
--- a/tests/regression/tex/utils.cpp
+++ b/tests/regression/tex/utils.cpp
@@ -3,8 +3,8 @@
 #include <string>
 #include <iostream>
 #include <iomanip>
-#include <tga.h>
-#include <png.h>
+#include <cocogfx/include/tga.h>
+#include <cocogfx/include/png.h>
 
 using namespace cocogfx;
 
diff --git a/tests/regression/tex/utils.h b/tests/regression/tex/utils.h
index a3ffccae..25c4e3ad 100644
--- a/tests/regression/tex/utils.h
+++ b/tests/regression/tex/utils.h
@@ -1,8 +1,8 @@
 #include <cstdint>
 #include <vector>
-#include <format.h>
-#include <blitter.h>
 #include <bitmanip.h>
+#include <cocogfx/include/format.h>
+#include <cocogfx/include/blitter.h>
 
 int LoadImage(const char *filename,
               cocogfx::ePixelFormat format,