diff --git a/include/mbedtls/build_info.h b/include/mbedtls/build_info.h
index 413d5c277e..bbfd5d48df 100644
--- a/include/mbedtls/build_info.h
+++ b/include/mbedtls/build_info.h
@@ -59,13 +59,6 @@
 #define inline __inline
 #endif
 
-/* Define `asm` for compilers which don't define it. */
-/* *INDENT-OFF* */
-#ifndef asm
-#define asm __asm__
-#endif
-/* *INDENT-ON* */
-
 #if !defined(MBEDTLS_CONFIG_FILE)
 #include "mbedtls/mbedtls_config.h"
 #else
diff --git a/library/common.h b/library/common.h
index ae6625b9e5..46af79f0da 100644
--- a/library/common.h
+++ b/library/common.h
@@ -142,4 +142,11 @@ inline void mbedtls_xor(unsigned char *r, const unsigned char *a, const unsigned
 #define /*no-check-names*/ __func__ __FUNCTION__
 #endif
 
+/* Define `asm` for compilers which don't define it. */
+/* *INDENT-OFF* */
+#ifndef asm
+#define asm __asm__
+#endif
+/* *INDENT-ON* */
+
 #endif /* MBEDTLS_LIBRARY_COMMON_H */