diff --git a/src/ecmascript/ecmascript-c.cpp b/src/ecmascript/ecmascript-c.cpp
index 4b4d933d..361dd547 100644
--- a/src/ecmascript/ecmascript-c.cpp
+++ b/src/ecmascript/ecmascript-c.cpp
@@ -11,6 +11,15 @@
 #include "document/view.h"
 #include "ecmascript/ecmascript.h"
 #include "ecmascript/ecmascript-c.h"
+#ifdef CONFIG_MUJS
+#include "ecmascript/mujs.h"
+#endif
+#ifdef CONFIG_QUICKJS
+#include "ecmascript/quickjs.h"
+#endif
+#ifdef CONFIG_ECMASCRIPT_SMJS
+#include "ecmascript/spidermonkey.h"
+#endif
 #include "intl/libintl.h"
 #include "protocol/uri.h"
 #include "session/session.h"
@@ -289,3 +298,37 @@ kill_ecmascript_timeouts(struct document *document)
 		done_string(&t->code);
 	}
 }
+
+void
+ecmascript_put_interpreter(struct ecmascript_interpreter *interpreter)
+{
+	assert(interpreter);
+	assert(interpreter->backend_nesting == 0);
+	/* If the assertion fails, it is better to leak the
+	 * interpreter than to corrupt memory.  */
+	if_assert_failed return;
+#ifdef CONFIG_MUJS
+	mujs_put_interpreter(interpreter);
+#elif defined(CONFIG_QUICKJS)
+	quickjs_put_interpreter(interpreter);
+#else
+	spidermonkey_put_interpreter(interpreter);
+#endif
+	free_ecmascript_string_list(&interpreter->onload_snippets);
+	done_string(&interpreter->code);
+	free_ecmascript_string_list(&interpreter->writecode);
+	/* Is it superfluous? */
+	if (interpreter->vs->doc_view) {
+		struct ecmascript_timeout *t;
+
+		foreach (t, interpreter->vs->doc_view->document->timeouts) {
+			kill_timer(&t->tid);
+			done_string(&t->code);
+		}
+		free_list(interpreter->vs->doc_view->document->timeouts);
+	}
+	interpreter->vs->ecmascript = NULL;
+	interpreter->vs->ecmascript_fragile = 1;
+	mem_free(interpreter);
+	--interpreter_count;
+}
diff --git a/src/ecmascript/ecmascript-c.h b/src/ecmascript/ecmascript-c.h
index a446dfec..9313df57 100644
--- a/src/ecmascript/ecmascript-c.h
+++ b/src/ecmascript/ecmascript-c.h
@@ -9,11 +9,13 @@ extern "C" {
 
 struct document_options;
 struct document;
+struct ecmascript_interpreter;
 struct session;
 struct uri;
 struct view_state;
 
 int ecmascript_get_interpreter_count(void);
+void ecmascript_put_interpreter(struct ecmascript_interpreter *interpreter);
 void toggle_ecmascript(struct session *ses);
 
 /* Takes line with the syntax javascript:<ecmascript code>. Activated when user
diff --git a/src/ecmascript/ecmascript.cpp b/src/ecmascript/ecmascript.cpp
index 5f906f2f..4f6fe747 100644
--- a/src/ecmascript/ecmascript.cpp
+++ b/src/ecmascript/ecmascript.cpp
@@ -19,6 +19,7 @@
 #include "document/renderer.h"
 #include "document/view.h"
 #include "ecmascript/ecmascript.h"
+#include "ecmascript/ecmascript-c.h"
 #include "ecmascript/libdom/parse.h"
 #ifdef CONFIG_MUJS
 #include "ecmascript/mujs.h"
@@ -253,40 +254,6 @@ ecmascript_get_interpreter(struct view_state *vs)
 	return interpreter;
 }
 
-void
-ecmascript_put_interpreter(struct ecmascript_interpreter *interpreter)
-{
-	assert(interpreter);
-	assert(interpreter->backend_nesting == 0);
-	/* If the assertion fails, it is better to leak the
-	 * interpreter than to corrupt memory.  */
-	if_assert_failed return;
-#ifdef CONFIG_MUJS
-	mujs_put_interpreter(interpreter);
-#elif defined(CONFIG_QUICKJS)
-	quickjs_put_interpreter(interpreter);
-#else
-	spidermonkey_put_interpreter(interpreter);
-#endif
-	free_ecmascript_string_list(&interpreter->onload_snippets);
-	done_string(&interpreter->code);
-	free_ecmascript_string_list(&interpreter->writecode);
-	/* Is it superfluous? */
-	if (interpreter->vs->doc_view) {
-		struct ecmascript_timeout *t;
-
-		foreach (t, interpreter->vs->doc_view->document->timeouts) {
-			kill_timer(&t->tid);
-			done_string(&t->code);
-		}
-		free_list(interpreter->vs->doc_view->document->timeouts);
-	}
-	interpreter->vs->ecmascript = NULL;
-	interpreter->vs->ecmascript_fragile = 1;
-	mem_free(interpreter);
-	--interpreter_count;
-}
-
 static void
 delayed_reload(void *data)
 {
diff --git a/src/ecmascript/ecmascript.h b/src/ecmascript/ecmascript.h
index 0c637712..ac3f7fc5 100644
--- a/src/ecmascript/ecmascript.h
+++ b/src/ecmascript/ecmascript.h
@@ -155,7 +155,6 @@ int ecmascript_check_url(char *url, char *frame);
 void ecmascript_free_urls(struct module *module);
 
 struct ecmascript_interpreter *ecmascript_get_interpreter(struct view_state*vs);
-void ecmascript_put_interpreter(struct ecmascript_interpreter *interpreter);
 
 void ecmascript_detach_form_view(struct form_view *fv);
 void ecmascript_detach_form_state(struct form_state *fs);
diff --git a/src/viewer/text/Makefile b/src/viewer/text/Makefile
index 87338810..37b6e3eb 100644
--- a/src/viewer/text/Makefile
+++ b/src/viewer/text/Makefile
@@ -5,6 +5,6 @@ INCLUDES += $(TRE_CFLAGS)
 
 OBJS-$(CONFIG_MARKS) += marks.o
 
-OBJS = draw.o form.obj link.obj search.o textarea.o view.obj vs.obj
+OBJS = draw.o form.obj link.obj search.o textarea.o view.obj vs.o
 
 include $(top_srcdir)/Makefile.lib
diff --git a/src/viewer/text/meson.build b/src/viewer/text/meson.build
index ddb20d6b..29c14b10 100644
--- a/src/viewer/text/meson.build
+++ b/src/viewer/text/meson.build
@@ -4,4 +4,4 @@ if conf_data.get('CONFIG_MARKS')
 	srcs += files('marks.c')
 endif
 
-srcs += files('draw.c', 'form.cpp', 'link.cpp', 'search.c', 'textarea.c', 'view.cpp', 'vs.cpp')
+srcs += files('draw.c', 'form.cpp', 'link.cpp', 'search.c', 'textarea.c', 'view.cpp', 'vs.c')
diff --git a/src/viewer/text/vs.cpp b/src/viewer/text/vs.c
similarity index 97%
rename from src/viewer/text/vs.cpp
rename to src/viewer/text/vs.c
index dd0c7694..18175003 100644
--- a/src/viewer/text/vs.cpp
+++ b/src/viewer/text/vs.c
@@ -12,7 +12,9 @@
 
 #include "document/document.h"
 #include "document/view.h"
-#include "ecmascript/ecmascript.h"
+#ifdef CONFIG_ECMASCRIPT
+#include "ecmascript/ecmascript-c.h"
+#endif
 #include "protocol/uri.h"
 #ifdef CONFIG_SCRIPTING_SPIDERMONKEY
 # include "scripting/smjs/smjs.h"
@@ -131,7 +133,7 @@ copy_vs(struct view_state *dst, struct view_state *src)
 				struct form_state *dstfs = &dst->form_info[i];
 
 #ifdef CONFIG_ECMASCRIPT_SMJS
-				dstfs->ecmascript_obj = nullptr;
+				dstfs->ecmascript_obj = NULL;
 #endif
 #ifdef CONFIG_QUICKJS
 				dstfs->ecmascript_obj = JS_NULL;