diff --git a/fix_implicit_declarations.patch b/fix_implicit_declarations.patch
new file mode 100644
index 0000000..dae141a
--- /dev/null
+++ b/fix_implicit_declarations.patch
@@ -0,0 +1,18 @@
+Author: Thomas Renninger <trenn@suse.de>
+
+Fix compiler warnings
+
+oa_soap_sensor.c:2209:9: note: include ‘<string.h>’ or provide a declaration of ‘memcpy’
+
+Index: openhpi-3.8.0/plugins/oa_soap/oa_soap_utils.h
+===================================================================
+--- openhpi-3.8.0.orig/plugins/oa_soap/oa_soap_utils.h	2018-10-04 16:19:50.682977324 +0200
++++ openhpi-3.8.0/plugins/oa_soap/oa_soap_utils.h	2018-10-04 16:20:29.393287079 +0200
+@@ -41,6 +41,7 @@
+ /* Include files */
+ #include <math.h>
+ #include <ctype.h>
++#include <string.h>
+ 
+ #include "oa_soap_calls.h"
+ #include "oa_soap.h"
diff --git a/openhpi.changes b/openhpi.changes
index 0219313..27d4a65 100644
--- a/openhpi.changes
+++ b/openhpi.changes
@@ -15,6 +15,8 @@ D openhpi-rpmlintrc
 - Disable ipmi plugin (deprecated) -> ipmidirect up-to-date
 - Still add a patch that ipmi plugin would still build:
 A fix_openipmi_typedef_selector_change.patch
+- Fix build due to compiler warnings in SLE and Leap 15:
+A fix_implicit_declarations.patch
 
 -------------------------------------------------------------------
 Fri Feb 24 16:32:49 UTC 2017 - kkaempf@suse.com
diff --git a/openhpi.spec b/openhpi.spec
index db80c1a..458dc58 100644
--- a/openhpi.spec
+++ b/openhpi.spec
@@ -29,6 +29,7 @@ Source2:        AUTHORS
 Patch0:         unlink-pidfile-on-error.patch
 Patch2:         openhpi-3.4.0-systemd.patch
 Patch3:         fix_openipmi_typedef_selector_change.patch
+Patch4:         fix_implicit_declarations.patch
 BuildRequires:  autoconf
 BuildRequires:  automake
 BuildRequires:  docbook-toys