diff --git a/core/combo/TARGET_linux-arm.mk b/core/combo/TARGET_linux-arm.mk
index 0233cc4e3..acd43f8db 100644
--- a/core/combo/TARGET_linux-arm.mk
+++ b/core/combo/TARGET_linux-arm.mk
@@ -135,7 +135,7 @@ KERNEL_HEADERS := $(KERNEL_HEADERS_COMMON) $(KERNEL_HEADERS_ARCH)
 $(combo_2nd_arch_prefix)TARGET_C_INCLUDES := \
 	$(libc_root)/arch-arm/include \
 	$(libc_root)/include \
-	$(KERNEL_HEADERS) \
+	$(KERNEL_HEADERS)
 
 $(combo_2nd_arch_prefix)TARGET_CRTBEGIN_STATIC_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o
 $(combo_2nd_arch_prefix)TARGET_CRTBEGIN_DYNAMIC_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o
diff --git a/core/combo/TARGET_linux-arm64.mk b/core/combo/TARGET_linux-arm64.mk
index f3b297962..fdb1da715 100644
--- a/core/combo/TARGET_linux-arm64.mk
+++ b/core/combo/TARGET_linux-arm64.mk
@@ -115,7 +115,7 @@ KERNEL_HEADERS := $(KERNEL_HEADERS_COMMON) $(KERNEL_HEADERS_ARCH)
 TARGET_C_INCLUDES := \
 	$(libc_root)/arch-arm64/include \
 	$(libc_root)/include \
-	$(KERNEL_HEADERS) \
+	$(KERNEL_HEADERS)
 
 TARGET_CRTBEGIN_STATIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o
 TARGET_CRTBEGIN_DYNAMIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o
diff --git a/core/combo/TARGET_linux-mips.mk b/core/combo/TARGET_linux-mips.mk
index 017dcaa39..0a9e42c9c 100644
--- a/core/combo/TARGET_linux-mips.mk
+++ b/core/combo/TARGET_linux-mips.mk
@@ -116,7 +116,7 @@ KERNEL_HEADERS := $(KERNEL_HEADERS_COMMON) $(KERNEL_HEADERS_ARCH)
 $(combo_2nd_arch_prefix)TARGET_C_INCLUDES := \
 	$(libc_root)/arch-mips/include \
 	$(libc_root)/include \
-	$(KERNEL_HEADERS) \
+	$(KERNEL_HEADERS)
 
 $(combo_2nd_arch_prefix)TARGET_CRTBEGIN_STATIC_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o
 $(combo_2nd_arch_prefix)TARGET_CRTBEGIN_DYNAMIC_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o
diff --git a/core/combo/TARGET_linux-mips64.mk b/core/combo/TARGET_linux-mips64.mk
index 94380f3b3..91b005724 100644
--- a/core/combo/TARGET_linux-mips64.mk
+++ b/core/combo/TARGET_linux-mips64.mk
@@ -123,7 +123,7 @@ KERNEL_HEADERS := $(KERNEL_HEADERS_COMMON) $(KERNEL_HEADERS_ARCH)
 TARGET_C_INCLUDES := \
 	$(libc_root)/arch-mips64/include \
 	$(libc_root)/include \
-	$(KERNEL_HEADERS) \
+	$(KERNEL_HEADERS)
 
 TARGET_CRTBEGIN_STATIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o
 TARGET_CRTBEGIN_DYNAMIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o
diff --git a/core/combo/TARGET_linux-x86.mk b/core/combo/TARGET_linux-x86.mk
index aa92198a8..e8cd92db0 100644
--- a/core/combo/TARGET_linux-x86.mk
+++ b/core/combo/TARGET_linux-x86.mk
@@ -105,7 +105,7 @@ $(combo_2nd_arch_prefix)TARGET_GLOBAL_LDFLAGS += -Wl,--no-undefined-version
 $(combo_2nd_arch_prefix)TARGET_C_INCLUDES := \
 	$(libc_root)/arch-x86/include \
 	$(libc_root)/include \
-	$(KERNEL_HEADERS) \
+	$(KERNEL_HEADERS)
 
 $(combo_2nd_arch_prefix)TARGET_CRTBEGIN_STATIC_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o
 $(combo_2nd_arch_prefix)TARGET_CRTBEGIN_DYNAMIC_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o
diff --git a/core/combo/TARGET_linux-x86_64.mk b/core/combo/TARGET_linux-x86_64.mk
index 3f204528c..8b2a37f1c 100644
--- a/core/combo/TARGET_linux-x86_64.mk
+++ b/core/combo/TARGET_linux-x86_64.mk
@@ -114,7 +114,7 @@ TARGET_GLOBAL_LDFLAGS += -Wl,--no-undefined-version
 TARGET_C_INCLUDES := \
 	$(libc_root)/arch-x86_64/include \
 	$(libc_root)/include \
-	$(KERNEL_HEADERS) \
+	$(KERNEL_HEADERS)
 
 TARGET_CRTBEGIN_STATIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o
 TARGET_CRTBEGIN_DYNAMIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o