diff --git a/include/psa/crypto_platform.h b/include/psa/crypto_platform.h
index 42cdad3..86af08f 100644
--- a/include/psa/crypto_platform.h
+++ b/include/psa/crypto_platform.h
@@ -38,7 +38,7 @@
 /* Include the Mbed TLS configuration file, the way Mbed TLS does it
  * in each of its header files. */
 #if !defined(MBEDTLS_CONFIG_FILE)
-#include "../mbedtls/config.h"
+#include "mbedtls/config.h"
 #else
 #include MBEDTLS_CONFIG_FILE
 #endif
diff --git a/include/psa/crypto_sizes.h b/include/psa/crypto_sizes.h
index 3cb0c73..f360fd6 100644
--- a/include/psa/crypto_sizes.h
+++ b/include/psa/crypto_sizes.h
@@ -45,7 +45,7 @@
 /* Include the Mbed TLS configuration file, the way Mbed TLS does it
  * in each of its header files. */
 #if !defined(MBEDTLS_CONFIG_FILE)
-#include "../mbedtls/config.h"
+#include "mbedtls/config.h"
 #else
 #include MBEDTLS_CONFIG_FILE
 #endif
diff --git a/include/psa/crypto_struct.h b/include/psa/crypto_struct.h
index 8850357..53da2a8 100644
--- a/include/psa/crypto_struct.h
+++ b/include/psa/crypto_struct.h
@@ -38,7 +38,7 @@
 /* Include the Mbed TLS configuration file, the way Mbed TLS does it
  * in each of its header files. */
 #if !defined(MBEDTLS_CONFIG_FILE)
-#include "../mbedtls/config.h"
+#include "mbedtls/config.h"
 #else
 #include MBEDTLS_CONFIG_FILE
 #endif