diff --git a/include/android/sharedmem.h b/include/android/sharedmem.h
index 46d2f4b..0354f17 100644
--- a/include/android/sharedmem.h
+++ b/include/android/sharedmem.h
@@ -52,8 +52,6 @@
 extern "C" {
 #endif
 
-#if __ANDROID_API__ >= __ANDROID_API_O__
-
 /**
  * Create a shared memory region.
  *
@@ -67,7 +65,7 @@
  * \param size size of the shared memory region
  * \return file descriptor that denotes the shared memory; error code on failure.
  */
-int ASharedMemory_create(const char *name, size_t size);
+int ASharedMemory_create(const char *name, size_t size) __INTRODUCED_IN(26);
 
 /**
  * Get the size of the shared memory region.
@@ -75,7 +73,7 @@
  * \param fd file descriptor of the shared memory region
  * \return size in bytes; 0 if fd is not a valid shared memory file descriptor.
  */
-size_t ASharedMemory_getSize(int fd);
+size_t ASharedMemory_getSize(int fd) __INTRODUCED_IN(26);
 
 /**
  * Restrict access of shared memory region.
@@ -106,9 +104,7 @@
  *             updated access. Note access can only be removed, but not added back.
  * \return 0 for success, error code on failure.
  */
-int ASharedMemory_setProt(int fd, int prot);
-
-#endif
+int ASharedMemory_setProt(int fd, int prot) __INTRODUCED_IN(26);
 
 #ifdef __cplusplus
 };