diff --git a/Common/ThunkArm.cpp b/Common/ThunkARM.cpp
similarity index 100%
rename from Common/ThunkArm.cpp
rename to Common/ThunkARM.cpp
diff --git a/android/ab.sh b/android/ab.sh
index 9480248799..6190b3e541 100644
--- a/android/ab.sh
+++ b/android/ab.sh
@@ -1 +1 @@
-NDK_MODULE_PATH=..:../native/ext $NDK/ndk-build -j 3
+NDK_MODULE_PATH=..:../native/ext $NDK/ndk-build -j3 TARGET_PLATFORM=android-9 $*
diff --git a/android/jni/Android.mk b/android/jni/Android.mk
index 53a379946b..35b38da443 100644
--- a/android/jni/Android.mk
+++ b/android/jni/Android.mk
@@ -68,7 +68,7 @@ LOCAL_SRC_FILES := \
   $(SRC)/Common/ThunkARM.cpp \
   $(SRC)/Common/Misc.cpp \
   $(SRC)/GPU/Math3D.cpp \
-  $(SRC)/GPU/GpuState.cpp \
+  $(SRC)/GPU/GPUState.cpp \
   $(SRC)/GPU/GLES/Framebuffer.cpp \
   $(SRC)/GPU/GLES/DisplayListInterpreter.cpp \
   $(SRC)/GPU/GLES/TextureCache.cpp \
@@ -89,7 +89,7 @@ LOCAL_SRC_FILES := \
   $(SRC)/Core/Loaders.cpp \
   $(SRC)/Core/PSPLoaders.cpp \
   $(SRC)/Core/MemMap.cpp \
-  $(SRC)/Core/MemmapFunctions.cpp \
+  $(SRC)/Core/MemMapFunctions.cpp \
   $(SRC)/Core/System.cpp \
   $(SRC)/Core/PSPMixer.cpp \
   $(SRC)/Core/Debugger/Breakpoints.cpp \