diff --git a/include/nativehelper/jni.h b/include/nativehelper/jni.h
index e4d74cf..1c2fb0c 100644
--- a/include/nativehelper/jni.h
+++ b/include/nativehelper/jni.h
@@ -25,33 +25,20 @@
 #define JNI_H_
 
 #include <stdarg.h>
+#include <stdint.h>
 
-/*
- * Primitive types that match up with Java equivalents.
- */
-#ifdef HAVE_INTTYPES_H
-# include <inttypes.h>      /* C99 */
-typedef uint8_t         jboolean;       /* unsigned 8 bits */
-typedef int8_t          jbyte;          /* signed 8 bits */
-typedef uint16_t        jchar;          /* unsigned 16 bits */
-typedef int16_t         jshort;         /* signed 16 bits */
-typedef int32_t         jint;           /* signed 32 bits */
-typedef int64_t         jlong;          /* signed 64 bits */
-typedef float           jfloat;         /* 32-bit IEEE 754 */
-typedef double          jdouble;        /* 64-bit IEEE 754 */
-#else
-typedef unsigned char   jboolean;       /* unsigned 8 bits */
-typedef signed char     jbyte;          /* signed 8 bits */
-typedef unsigned short  jchar;          /* unsigned 16 bits */
-typedef short           jshort;         /* signed 16 bits */
-typedef int             jint;           /* signed 32 bits */
-typedef long long       jlong;          /* signed 64 bits */
-typedef float           jfloat;         /* 32-bit IEEE 754 */
-typedef double          jdouble;        /* 64-bit IEEE 754 */
-#endif
+/* Primitive types that match up with Java equivalents. */
+typedef uint8_t  jboolean; /* unsigned 8 bits */
+typedef int8_t   jbyte;    /* signed 8 bits */
+typedef uint16_t jchar;    /* unsigned 16 bits */
+typedef int16_t  jshort;   /* signed 16 bits */
+typedef int32_t  jint;     /* signed 32 bits */
+typedef int64_t  jlong;    /* signed 64 bits */
+typedef float    jfloat;   /* 32-bit IEEE 754 */
+typedef double   jdouble;  /* 64-bit IEEE 754 */
 
 /* "cardinal indices and sizes" */
-typedef jint            jsize;
+typedef jint     jsize;
 
 #ifdef __cplusplus
 /*