diff --git a/stimBuffApis/livoxGen1/openClKernels.cl.S b/stimBuffApis/livoxGen1/openClKernels.cl.S
index 87d50ee..d6d17a6 100644
--- a/stimBuffApis/livoxGen1/openClKernels.cl.S
+++ b/stimBuffApis/livoxGen1/openClKernels.cl.S
@@ -12,6 +12,6 @@ collateKernelEnd:
 
 	.section .data
 collateKernelNBytes:
-	.quad collateKernelEnd - collateKernelStart
+	.long collateKernelEnd - collateKernelStart
 
 	.section .note.GNU-stack,"",@progbits
diff --git a/stimBuffApis/livoxGen1/openClKernels.h b/stimBuffApis/livoxGen1/openClKernels.h
index 9dce67c..86fa595 100644
--- a/stimBuffApis/livoxGen1/openClKernels.h
+++ b/stimBuffApis/livoxGen1/openClKernels.h
@@ -1,7 +1,7 @@
 #ifndef _LIVOX_GEN1_OPENCL_KERNELS_H
 #define _LIVOX_GEN1_OPENCL_KERNELS_H
 
-#include <cstddef>
+#include <cstdint>
 
 namespace smo {
 namespace stim_buff {
@@ -9,7 +9,7 @@ namespace stim_buff {
 // External symbols for collate kernel
 extern const char collateKernelStart[];
 extern const char collateKernelEnd[];
-extern const size_t collateKernelNBytes;
+extern const uint32_t collateKernelNBytes;
 
 } // namespace stim_buff
 } // namespace smo