diff --git a/module/zstd/Makefile.in b/module/zstd/Makefile.in
index 598409ca1..4d9398efd 100644
--- a/module/zstd/Makefile.in
+++ b/module/zstd/Makefile.in
@@ -42,4 +42,4 @@ gensymbols:
 	@OBJDUMP@ -t lib/zstd.o | awk '$$2 == "g" && !/ zfs_/ {print "#define\t" $$6 " zfs_" $$6}' | sort >> include/zstd_compat_wrapper.h
 
 checksymbols:
-	@OBJDUMP@ -t lib/zstd.o | awk '/file format/ {print}  $$2 == "g" && !/ zfs_/ {++ret; print}  END {exit ret}'
+	@OBJDUMP@ -t lib/zstd.o | awk '/file format/ {print}  $$2 == "g" && (!/ zfs_/ && !/ __pfx_zfs_/) {++ret; print}  END {exit ret}'