diff --git a/openssl-ibmca.spec b/openssl-ibmca.spec
index 6c48846..0a1de9d 100644
--- a/openssl-ibmca.spec
+++ b/openssl-ibmca.spec
@@ -26,7 +26,7 @@ A dynamic OpenSSL engine for IBMCA crypto hardware on IBM zSeries machines.
 %prep
 %setup -q
 %patch0 -p1 -b .libica-soname
-%patch1 -p0 -b .ofb
+%patch1 -p1 -b .ofb
 %patch2 -p1 -b .1074976
 %patch3 -p1 -b .1075474