diff --git a/lib/extensions/sve/sve.c b/lib/extensions/sve/sve.c
index dfabf5e..6442487 100644
--- a/lib/extensions/sve/sve.c
+++ b/lib/extensions/sve/sve.c
@@ -21,7 +21,7 @@
 {
 	uint64_t cptr;
 
-	if (!sve_supported())
+	if (sve_supported() == 0)
 		return (void *)-1;
 
 	/*
@@ -46,7 +46,7 @@
 {
 	uint64_t cptr;
 
-	if (!sve_supported())
+	if (sve_supported() == 0)
 		return (void *)-1;
 
 	/*
@@ -67,7 +67,7 @@
 {
 	uint64_t cptr;
 
-	if (!sve_supported())
+	if (sve_supported() == 0)
 		return;
 
 #if CTX_INCLUDE_FPREGS