diff --git a/src/rp2040/pico_platform/include/pico/platform.h b/src/rp2040/pico_platform/include/pico/platform.h
index 47aa119a7..5c157f532 100644
--- a/src/rp2040/pico_platform/include/pico/platform.h
+++ b/src/rp2040/pico_platform/include/pico/platform.h
@@ -77,6 +77,10 @@
 
 #ifndef __ASSEMBLER__
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /*! \brief No-op function for the body of tight loops
  *  \ingroup pico_platform
  *
@@ -210,6 +214,10 @@ return a;
     (__builtin_popcount(b) >= 2 ? __mul_instruction(a,b) : (a)*(b)), \
     (a)*(b))
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif // __ASSEMBLER__
 
 #endif
diff --git a/src/rp2350/pico_platform/include/pico/platform.h b/src/rp2350/pico_platform/include/pico/platform.h
index 24fec75bb..35a6a0bd6 100644
--- a/src/rp2350/pico_platform/include/pico/platform.h
+++ b/src/rp2350/pico_platform/include/pico/platform.h
@@ -70,6 +70,10 @@
 
 #ifndef __ASSEMBLER__
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /*! \brief No-op function for the body of tight loops
  *  \ingroup pico_platform
  *
@@ -281,6 +285,10 @@ __force_inline static int32_t __mul_instruction(int32_t a, int32_t b) {
     (__builtin_popcount(b) >= 2 ? __mul_instruction(a,b) : (a)*(b)), \
     (a)*(b))
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif // __ASSEMBLER__
 
 #endif