diff --git a/attach b/attach
index 964a9bb5..937de30a 100755
--- a/attach
+++ b/attach
@@ -41,13 +41,13 @@ cp "bin/libcathook.so" "$FILENAME"
 
 echo loading "$FILENAME" to "$proc"
 
-gdb -n -q -batch \
-    -ex "attach $proc" \
-    -ex "set \$dlopen = (void*(*)(char*, int)) dlopen" \
-    -ex "call \$dlopen(\"$FILENAME\", 1)" \
-    -ex "call dlerror()" \
-    -ex 'print (char *) $2' \
-    -ex "detach" \
+gdb -n -q -batch                                                        \
+    -ex "attach $proc"                                                  \
+    -ex "echo \033[1mCalling dlopen\033[0m\n"                           \
+    -ex "call ((void*(*)(const char*, int))dlopen)(\"$FILENAME\", 1)"   \
+    -ex "echo \033[1mCalling dlerror\033[0m\n"                          \
+    -ex "call ((char*(*)(void))dlerror)()"                              \
+    -ex "detach"                                                        \
     -ex "quit"
 
 rm $FILENAME
diff --git a/attach-gdb b/attach-gdb
index 17509310..e10d10d4 100755
--- a/attach-gdb
+++ b/attach-gdb
@@ -41,13 +41,13 @@ cp "bin/libcathook.so" "$FILENAME"
 
 echo loading "$FILENAME" to "$proc"
 
-gdb -n -q -batch \
-  -ex "attach $proc" \
-  -ex "set \$dlopen = (void*(*)(char*, int)) dlopen" \
-  -ex "call \$dlopen(\"$FILENAME\", 1)" \
-  -ex "call dlerror()" \
-  -ex 'print (char *) $2' \
-  -ex "continue" \
-  -ex "backtrace"
+gdb -n -q -batch                                                        \
+    -ex "attach $proc"                                                  \
+    -ex "echo \033[1mCalling dlopen\033[0m\n"                           \
+    -ex "call ((void*(*)(const char*, int))dlopen)(\"$FILENAME\", 1)"   \
+    -ex "echo \033[1mCalling dlerror\033[0m\n"                          \
+    -ex "call ((char*(*)(void))dlerror)()"                              \
+    -ex "continue"                                                      \
+    -ex "backtrace"
 
 rm $FILENAME
diff --git a/attach-libnamed.sh b/attach-libnamed.sh
index c93e63eb..03794eff 100755
--- a/attach-libnamed.sh
+++ b/attach-libnamed.sh
@@ -50,13 +50,13 @@ sudo cp "bin/libcathook.so" "/lib/i386-linux-gnu/${FILENAME}"
 
 echo loading "$FILENAME" to "$proc"
 
-sudo gdb -n -q -batch \
-     -ex "attach $proc" \
-     -ex "set \$dlopen = (void*(*)(char*, int)) dlopen" \
-     -ex "call \$dlopen(\"/lib/i386-linux-gnu/$FILENAME\", 1)" \
-     -ex "call dlerror()" \
-     -ex 'print (char *) $2' \
-     -ex "detach" \
-     -ex "quit"
+gdb -n -q -batch                                                                                \
+    -ex "attach $proc"                                                                          \
+    -ex "echo \033[1mCalling dlopen\033[0m\n"                                                   \
+    -ex "call ((void*(*)(const char*, int))dlopen)(\"/lib/i386-linux-gnu/$FILENAME\", 1)"       \
+    -ex "echo \033[1mCalling dlerror\033[0m\n"                                                  \
+    -ex "call ((char*(*)(void))dlerror)()"                                                      \
+    -ex "detach"                                                                                \
+    -ex "quit"
 
 sudo rm "/lib/i386-linux-gnu/${FILENAME}"