diff --git a/doc/Makefile.am b/doc/Makefile.am
index e68d9a0..175aef2 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -8,7 +8,7 @@ MAINTAINERCLEANFILES = $(dist_man_MANS)
 #pic1d.1: $(top_srcdir)/configure.ac $(top_srcdir)/src/arguments.cpp $(top_srcdir)/src/arguments.h
 #	$(HELP2MAN) --output=$@ --name='A plasma simulator.' ../src/plasma$(EXEEXT)
 pic1d.1: $(top_srcdir)/configure.ac $(top_srcdir)/src/arguments.cpp $(top_srcdir)/src/arguments.h
-	$(HELP2MAN) --output=$@ --name='A plasma simulator.' `if [ -x ../src/plasma ]; then echo "../src/pic1d"; else echo "pic1d"; fi;`
+	$(HELP2MAN) --output=$@ --name='A plasma simulator.' `if [ -x ../src/pic1d ]; then echo "../src/pic1d"; else echo "pic1d"; fi;`
 
 ###
 # Proper documentation
diff --git a/doc/Makefile.in b/doc/Makefile.in
index ade537e..d4a7102 100644
--- a/doc/Makefile.in
+++ b/doc/Makefile.in
@@ -1421,7 +1421,7 @@ uninstall-man: uninstall-man1
 #pic1d.1: $(top_srcdir)/configure.ac $(top_srcdir)/src/arguments.cpp $(top_srcdir)/src/arguments.h
 #	$(HELP2MAN) --output=$@ --name='A plasma simulator.' ../src/plasma$(EXEEXT)
 pic1d.1: $(top_srcdir)/configure.ac $(top_srcdir)/src/arguments.cpp $(top_srcdir)/src/arguments.h
-	$(HELP2MAN) --output=$@ --name='A plasma simulator.' `if [ -x ../src/plasma ]; then echo "../src/pic1d"; else echo "pic1d"; fi;`
+	$(HELP2MAN) --output=$@ --name='A plasma simulator.' `if [ -x ../src/pic1d ]; then echo "../src/pic1d"; else echo "pic1d"; fi;`
 
 # Tell versions [3.59,3.63) of GNU make to not export all variables.
 # Otherwise a system limit (for SysV at least) may be exceeded.