diff --git a/include/cglm/call/ease.h b/include/cglm/call/ease.h
index 9f1757e..87e39ca 100644
--- a/include/cglm/call/ease.h
+++ b/include/cglm/call/ease.h
@@ -137,4 +137,7 @@ CGLM_EXPORT
 float
 glmc_ease_bounce_inout(float t);
 
+#ifdef __cplusplus
+}
+#endif
 #endif /* cglmc_ease_h */
diff --git a/include/cglm/call/sphere.h b/include/cglm/call/sphere.h
index 02c3d55..9b96546 100644
--- a/include/cglm/call/sphere.h
+++ b/include/cglm/call/sphere.h
@@ -33,4 +33,7 @@ CGLM_EXPORT
 bool
 glmc_sphere_point(vec4 s, vec3 point);
 
+#ifdef __cplusplus
+}
+#endif
 #endif /* cglmc_sphere_h */