diff --git a/modules/mono/SCsub b/modules/mono/SCsub
index 13212636e3f..c3ab9212c7d 100644
--- a/modules/mono/SCsub
+++ b/modules/mono/SCsub
@@ -97,29 +97,31 @@ def find_msbuild_unix(filename):
 def find_msbuild_windows():
     import mono_reg_utils as monoreg
 
+    bits = env['bits']
+
+    if bits == '32':
+        if os.getenv('MONO32_PREFIX'):
+            mono_root = os.getenv('MONO32_PREFIX')
+        else:
+            mono_root = monoreg.find_mono_root_dir(bits)
+    else:
+        if os.getenv('MONO64_PREFIX'):
+            mono_root = os.getenv('MONO64_PREFIX')
+        else:
+            mono_root = monoreg.find_mono_root_dir(bits)
+
+    if not mono_root:
+        raise RuntimeError('Cannot find mono root directory')
+
     msbuild_tools_path = monoreg.find_msbuild_tools_path_reg()
 
     if msbuild_tools_path:
-        return (os.path.join(msbuild_tools_path, 'MSBuild.exe'), '')
+        return (os.path.join(msbuild_tools_path, 'MSBuild.exe'), os.path.join(mono_root, 'lib', 'mono', '4.5'))
     else:
-        bits = env['bits']
+        msbuild_mono = os.path.join(mono_root, 'bin', 'msbuild.bat')
 
-        if bits == '32':
-            if os.getenv('MONO32_PREFIX'):
-                mono_root = os.getenv('MONO32_PREFIX')
-            else:
-                mono_root = monoreg.find_mono_root_dir(bits)
-        else:
-            if os.getenv('MONO64_PREFIX'):
-                mono_root = os.getenv('MONO64_PREFIX')
-            else:
-                mono_root = monoreg.find_mono_root_dir(bits)
-
-        if mono_root:
-            msbuild_mono = os.path.join(mono_root, 'bin', 'msbuild.bat')
-
-            if os.path.isfile(msbuild_mono):
-                return (msbuild_mono, os.path.join(mono_root, 'lib', 'mono', '4.5'))
+        if os.path.isfile(msbuild_mono):
+            return (msbuild_mono, '')
 
     return None
 
diff --git a/modules/mono/editor/godotsharp_builds.cpp b/modules/mono/editor/godotsharp_builds.cpp
index 6072bb4aad9..e02ba48010e 100644
--- a/modules/mono/editor/godotsharp_builds.cpp
+++ b/modules/mono/editor/godotsharp_builds.cpp
@@ -32,6 +32,7 @@
 #include "main/main.h"
 
 #include "../godotsharp_dirs.h"
+#include "../mono_gd/gd_mono.h"
 #include "../mono_gd/gd_mono_class.h"
 #include "../mono_gd/gd_mono_marshal.h"
 #include "../utils/path_utils.h"
@@ -84,10 +85,16 @@ void godot_icall_BuildInstance_get_MSBuildInfo(MonoString **r_msbuild_path, Mono
 				if (!msbuild_tools_path.ends_with("\\"))
 					msbuild_tools_path += "\\";
 
-				*r_msbuild_path = GDMonoMarshal::mono_string_from_godot(msbuild_tools_path + "MSBuild.exe");
-
 				// FrameworkPathOverride
-				*r_framework_path = GDMonoMarshal::mono_string_from_godot(GDMono::get_singleton()->get_mono_reg_info().assembly_dir);
+				const MonoRegInfo &mono_reg_info = GDMono::get_singleton()->get_mono_reg_info();
+				if (mono_reg_info.assembly_dir.length()) {
+					*r_msbuild_path = GDMonoMarshal::mono_string_from_godot(msbuild_tools_path + "MSBuild.exe");
+
+					String framework_path = path_join(mono_reg_info.assembly_dir, "mono", "4.5");
+					*r_framework_path = GDMonoMarshal::mono_string_from_godot(framework_path);
+				} else {
+					ERR_PRINT("Cannot find Mono's assemblies directory in the registry");
+				}
 
 				return;
 			}
@@ -130,6 +137,7 @@ void godot_icall_BuildInstance_get_MSBuildInfo(MonoString **r_msbuild_path, Mono
 
 	return;
 #else
+	ERR_PRINT("Not implemented on this platform");
 	return;
 #endif
 }
diff --git a/modules/mono/mono_gd/gd_mono_assembly.cpp b/modules/mono/mono_gd/gd_mono_assembly.cpp
index 0d9b137f99d..7dc7043eec6 100644
--- a/modules/mono/mono_gd/gd_mono_assembly.cpp
+++ b/modules/mono/mono_gd/gd_mono_assembly.cpp
@@ -107,10 +107,11 @@ MonoAssembly *GDMonoAssembly::_preload_hook(MonoAssemblyName *aname, char **asse
 			search_dirs.push_back(String(rootdir).plus_file("mono").plus_file("4.5"));
 		}
 
-		while (assemblies_path) {
-			if (*assemblies_path)
+		if (assemblies_path) {
+			while (*assemblies_path) {
 				search_dirs.push_back(*assemblies_path);
-			++assemblies_path;
+				++assemblies_path;
+			}
 		}
 	}