diff --git a/src/igl/vulkan/VulkanExtensions.h b/src/igl/vulkan/VulkanExtensions.h
index 02b6610981..205b4eccac 100644
--- a/src/igl/vulkan/VulkanExtensions.h
+++ b/src/igl/vulkan/VulkanExtensions.h
@@ -16,8 +16,6 @@
 
 namespace igl::vulkan {
 
-struct VulkanContextConfig;
-
 /// @brief The VulkanExtensions class is a helper class that manages instance and device
 /// extensions in Vulkan by enumerating all extensions available for either object and storing the
 /// names of the available ones as std::strings. A call to either `enumerate()` or
diff --git a/src/igl/vulkan/VulkanFeatures.h b/src/igl/vulkan/VulkanFeatures.h
index 8f9d37a10f..0adcf335bb 100644
--- a/src/igl/vulkan/VulkanFeatures.h
+++ b/src/igl/vulkan/VulkanFeatures.h
@@ -12,7 +12,6 @@
 
 namespace igl::vulkan {
 
-struct VulkanContextConfig;
 class VulkanContext;
 
 /// @brief Creates and maintains a list of feature structures for checking feature availability and