diff --git a/src/plugins/wp/RefUsage.ml b/src/plugins/wp/RefUsage.ml
index d34ad61347c88f5561733c339655c8c4aa94c39f..1771bbd362d21f6183d4894843c15927723cf101 100644
--- a/src/plugins/wp/RefUsage.ml
+++ b/src/plugins/wp/RefUsage.ml
@@ -852,7 +852,7 @@ struct
 
   let () =
     Acsl_extension.register_behavior ~plugin:"wp"
-      "wp_nullable_args" Nullable_extension.typer false
+      "nullable_args" Nullable_extension.typer false
 
   module HasNullable =
     State_builder.Option_ref(Datatype.Bool)
diff --git a/src/plugins/wp/doc/manual/nullable.c b/src/plugins/wp/doc/manual/nullable.c
index 9b403ffe91cb9148bcff3b461de90cec89c09cb1..f84f31d995e3cf5d197737e171c58e00b9739083 100644
--- a/src/plugins/wp/doc/manual/nullable.c
+++ b/src/plugins/wp/doc/manual/nullable.c
@@ -3,7 +3,7 @@ void foo(int* p /*@ wp_nullable */, int* q /*@ wp_nullable */){
 }
 
 // or equivalently:
-//@ wp_nullable_args p, q ;
+//@ \wp::nullable_args p, q ;
 void foo(int* p, int* q){
 
 }
diff --git a/src/plugins/wp/doc/manual/wp_plugin.tex b/src/plugins/wp/doc/manual/wp_plugin.tex
index 8c6f6ae198dd42769f4294a21206d70ea4c03b79..f7c53c749ba7ba2e1ab7f87961b239d7aef9bbec 100644
--- a/src/plugins/wp/doc/manual/wp_plugin.tex
+++ b/src/plugins/wp/doc/manual/wp_plugin.tex
@@ -1919,12 +1919,12 @@ The syntax of ACSL extensions for proof strategies is defined below:
 
 \begin{center}
   \begin{tabular}{l}
-    \verb+@strategy+ \textit{name}\,: \\
+    \verb+@\wp::strategy+ \textit{name}\,: \\
     \quad\quad\textit{alternative}\,, \\
     \quad\quad\ldots, \\
     \quad\quad\textit{alternative}\,; \\
     \\
-    \verb+@proof+ \textit{name}\,: \textit{target}\pdots\textit{target}\,;
+    \verb+@\wp::proof+ \textit{name}\,: \textit{target}\pdots\textit{target}\,;
   \end{tabular}
 \end{center}
 
@@ -2051,7 +2051,7 @@ name to the strategies to use:
 
 \begin{center}
   \begin{tabular}{l}
-    \verb+@proof+ \textit{strategy}\,: smoke,\textit{target}\pdots\textit{target}\,;
+    \verb+@\wp::proof+ \textit{strategy}\,: smoke,\textit{target}\pdots\textit{target}\,;
   \end{tabular}
 \end{center}
 
diff --git a/src/plugins/wp/tests/wp_plugin/nullable_ext.c b/src/plugins/wp/tests/wp_plugin/nullable_ext.c
index aac3f9c478127075782514f9bef34c73c8fa4a34..830970f30e01ed34f43b75582c3a32d9e3b99fee 100644
--- a/src/plugins/wp/tests/wp_plugin/nullable_ext.c
+++ b/src/plugins/wp/tests/wp_plugin/nullable_ext.c
@@ -17,7 +17,7 @@ int x;
 int *g;
 
 /*@ assigns *g, *p, x ;
-    \wp::wp_nullable_args p ;
+    \wp::nullable_args p ;
 */
 void nullable_coherence(int *p) {
   if (p == (void *)0) {
@@ -31,7 +31,7 @@ void nullable_coherence(int *p) {
 }
 
 /*@ assigns *p, *q, *r, *s, *t ;
-    \wp::wp_nullable_args p, q, r ;
+    \wp::nullable_args p, q, r ;
 */
 void nullable_in_context(int *p, int *q, int *r, int *s, int *t) {
   *p = 42;
@@ -41,35 +41,35 @@ void nullable_in_context(int *p, int *q, int *r, int *s, int *t) {
 }
 
 /*@ assigns *ptr ;
-    \wp::wp_nullable_args ptr  ;
+    \wp::nullable_args ptr  ;
 */
 void with_declaration(int *ptr);
 void with_declaration(int *ptr) {}
 
 #ifdef FAIL_1
 /*@ assigns *ptr ;
-    \wp::wp_nullable_args unexisting_ptr ;
+    \wp::nullable_args unexisting_ptr ;
 */
 void fails_no_variable(int *ptr) {}
 #endif
 
 #ifdef FAIL_2
 /*@ assigns *ptr ;
-    \wp::wp_nullable_args *ptr ;
+    \wp::nullable_args *ptr ;
 */
 void not_a_variable(int *ptr) {}
 #endif
 
 #ifdef FAIL_3
 /*@ assigns *ptr ;
-    \wp::wp_nullable_args g ;
+    \wp::nullable_args g ;
 */
 void not_a_formal(int *ptr) {}
 #endif
 
 #ifdef FAIL_4
 /*@ assigns x ;
-    \wp::wp_nullable_args f ;
+    \wp::nullable_args f ;
 */
 void not_a_pointer(int f) {}
 #endif