diff --git a/kernel/x86_64/KERNEL.ZEN b/kernel/x86_64/KERNEL.ZEN
index be4503d47..aa4ba4834 100644
--- a/kernel/x86_64/KERNEL.ZEN
+++ b/kernel/x86_64/KERNEL.ZEN
@@ -53,7 +53,7 @@ DGEMMONCOPYOBJ =  dgemm_oncopy$(TSUFFIX).$(SUFFIX)
 DGEMMOTCOPYOBJ =  dgemm_otcopy$(TSUFFIX).$(SUFFIX)
 
 CTRMMKERNEL    =  cgemm_kernel_8x2_haswell.S
-CGEMMKERNEL    =  cgemm_kernel_8x2_haswell.S
+CGEMMKERNEL    =  cgemm_kernel_8x2_haswell.c
 CGEMMINCOPY    =  ../generic/zgemm_ncopy_8.c
 CGEMMITCOPY    =  ../generic/zgemm_tcopy_8.c
 CGEMMONCOPY    =  ../generic/zgemm_ncopy_2.c
@@ -64,7 +64,7 @@ CGEMMONCOPYOBJ =  cgemm_oncopy$(TSUFFIX).$(SUFFIX)
 CGEMMOTCOPYOBJ =  cgemm_otcopy$(TSUFFIX).$(SUFFIX)
 
 ZTRMMKERNEL    =  zgemm_kernel_4x2_haswell.S
-ZGEMMKERNEL    =  zgemm_kernel_4x2_haswell.S
+ZGEMMKERNEL    =  zgemm_kernel_4x2_haswell.c
 ZGEMMINCOPY    =  ../generic/zgemm_ncopy_4.c
 ZGEMMITCOPY    =  ../generic/zgemm_tcopy_4.c
 ZGEMMONCOPY    =  ../generic/zgemm_ncopy_2.c